91Ó°ÊÓ

Evaluate the experssion when $a=4, b=2,\text{and}c=16$

localid="1647950532996" $a+c$

You buy 4 videotapes for \(14.99 each and 3 DVDs for \)19.99 each. Find the total cost of the movies.

Find the sum.

55 + (– 28) + (– 6)

Simplify

– 72 ÷ 12 ÷ 3

Evaluate the expression when n = 7 and n = 0.4.

n⁴

Find the product or quotient.

$-25\left(-30\right)$

Find the sum.

$-  8+\left(-  7\right)$

Evaluate the expression when $x=4,\text{ a²Ô»å}y=3$

localid="1648722582194" $5x^2+2y$

Error Analysis Describe and correct the error in finding the difference of $-2\text{and}-5$.

State the absolute value of the number.

$-73$