Leveled Practice In , write equivalent expressions.

$2.2 x+2.2$

tWrite an algebraic expression for each situation.

wice a number k plus the quantity s minus 2

find the value of each expression when $a=\frac{1}{3}, b=9, c=5$, and $d=10$.

$3 c+b^2 \div 27 a-d$

Write each power as repeated multiplication. Then evaluate

$\left(\frac{1}{7}\right)^2$

Find the GCF for each pair of numbers.

19,22

Insert grouping symbols so that the expression has the given value.

Target value: 29

$$12 \times 2^2-18.4+0.6$$

Leveled Practice In , write equivalent expressions.

$8 w-16$

Write each power as repeated multiplication. Then evaluate

$3^4$

Write an algebraic expression for each situation.

6 less than the quotient of z divided by 3

Leveled Practice In combine like terms to simplify each expression.

$12 y^2-6 y^2$

find the value of each expression when $a=\frac{1}{3}, b=9, c=5$, and $d=10$.

$d^2+2 c-b+3 a$

Find the GCF for each pair of numbers.

24, 100

Write an algebraic expression for each situation.

4 times the sum of x and $\frac{1}{2}$

Write the exponent for each expression.

$0.5 \times 0.5 \times 0.5$