Answer: C
Step-by-step explanation:
By the difference of squares, 
Answer:
$ 3.75
Step-by-step explanation:
1/2 · $7.5 given
0.5 · $7.5 make 1/2 as decimal
$ 3.75 answer
Answer:
x>-4
Step-by-step explanation:
|x+7| is just x+7
x+7>3
-7 on both sides
x>-4
Answer:
1. (q² + 8) - (4q² + 1)
Simplify each term.
q²+8−4q²−1
Simplify by adding terms.
−3q²+7
2. (3x + 7x² - 6) - (5x² + x + 9)
Simplify each term.
3x+7x²−6−5x²−x−9
Simplify by adding terms.
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2x²+2x−15
Step-by-step explanation: