Algebra

Which expression represents 'the sum of $x$ and $y$, multiplied by $2$'?

Simplify the expression: $12b - b$.

If $x = 9$, find the value of $x + x$.

Which expression represents '$25$ divided by $v$'?

An orchard has $r$ rows of trees with $t$ trees in each row. If 2 rows of trees are cut down, how many trees are left in the orchard?

A square has a side length of $\frac{s}{4}$. What is the perimeter of the square?

Simplify the expression: $a + a + a + b + b$.

Simplify: $4y - [2y - (y + 3)]$.

If $a = -2$, find the value of $-a^2 - 3a + 5$.

A man is $x$ years old. His son is 25 years younger. In 5 years, what will be the sum of their ages?

Simplify: $5k + 2 + k + 8$

Simplify the expression: $12y - 2y - y$

Simplify the following expression: $3x + 3x + 2$

Simplify by collecting like terms: $4p + 6q + p + q$

Simplify the expression: $14xy - 5xy + 4x - 2x$

Simplify the expression: $x + y + z - x - y + z$

Simplify the expression: $11 - 3w + 6 - 2w$

Simplify the expression: $4(3x - 2) - 2(5x - 4)$.

Simplify the expression: $x^2 + 2x - [3x^2 - (x - 4)]$.

Simplify the expression: $5(2a - b) - 3(a - 2b) + a$.

Find $p$ if $\frac{p}{4} = 12$

Solve: $15r = 30$

Solve for $y$: $y - 14 = 14$

Find the value of $x$: $x + 1.1 = 5.5$

Determine the value of $y$: $8.4 = 2.1y$

Solve for $x$: $\frac{x - 10}{5} = 2$

Solve the equation: $22 = 6z - 8$

Solve for $x$: $1.2x + 3.6 = 0$

Find $x$: $\frac{x + 10}{5} = -1$

Solve for $x$: $0.1x + 2 = 1.5$

Which formula converts $m$ minutes into $S$ seconds?

Find $y$ in the formula $y = x - 7$ when $x = 15$.

Which formula represents 'Divide $x$ by 2 and then add 5'?

Using the formula $W = Fd$, find $W$ if $F = 10$ and $d = 3$.

The energy ($E$) in a system is given by $E = \frac{1}{2}mv^2$. If $m = 10$ and $v = 4$, what is the value of $E$?

A piggy bank contains $q$ quarters (worth $0.25$ each) and $d$ dimes (worth $0.10$ each). Which formula represents the total value ($V$) in dollars?

Given the formula $y = 20 - 2.5x$, find the value of $y$ when $x = 6$.

If $\frac{a + b}{c} = d$, find the value of $b$ when $a = 5$, $c = 3$, and $d = 4$.

The height $h$ of a ball thrown upwards after $t$ seconds is $h = -5t^2 + 20t + 2$. Find the height of the ball after $2$ seconds.

A square has a side length of $(x + 3)\text{ cm}$. If the perimeter of the square is $44\text{ cm}$, find the value of $x$.

Find the next term in the sequence: $15, 30, 45, 60, \dots$.

What is the rule for the sequence: $1, 4, 7, 10, \dots$?

What is the missing term: $1.1, 2.2, 3.3, \dots, 5.5$?

Find the next term: $5, 10, 20, 40, \dots$.

A sequence has the $n^{th}$ term rule $10 - 5n$. Find the $5^{th}$ term.

What is the $n^{th}$ term rule for the sequence: $7, 14, 21, 28, ...$?

Find the $9^{th}$ term of the sequence with the rule $(n+1)^2$.

A sequence is $2, 9, 16, 23, \dots$. Find the sum of the $10^{th}$ and $20^{th}$ terms.

In the sequence $T_n = 100 - n^2$, which term is the first negative term?

What is the $n^{th}$ term for the sequence: $0.2, 0.4, 0.6, 0.8, \dots$?