Answer:
358710
Step-by-step explanation:
Answer:
9x
Step-by-step explanation:
(x² + 2x) - (x² - 7x) ← distribute parenthesis
= x² + 2x - x² + 7x ← collect like terms
= 9x
Answer:
15 inches
Step-by-step explanation:
Perimeter is 2l + 2w (or l+l+w+w)
Start by subtracting: 42 - 12. The 12 is from 2•6 for both width sides.
42-12=30
Divide 30 by 2 to find the length for one side. 30 ÷ 2 = 15
Step-by-step explanation:



Answer:
mmmmm i think its 75
Step-by-step explanation: