Answer:
y=-8x-4
Step-by-step explanation:

we can rewrite it as

we can see that 1/4 is in multiple in both terms
so, we can factor it out
so, we get
..............Answer
A. the answer is 6x^2+9x-42
Answer:
down below.
Step-by-step explanation:
20 × 400 = 8000
8000 - 7200 = 800
therefore the % mark up is 10%, because 10% of 8000 is 800.
800 + 7200 = 8000
C= πr²
C= 3.14×8²
C=3.14×64
C=200.96