Answer:
y = -3.5x + 69.
Step-by-step explanation:
Answer: 8% markup
Step-by-step explanation: Work is attached in the image provided.
Area = length x width
x² + 12x = l * x
A. First, you factor x from x² + 12x

area = x (x+12)
area = (x+12) * x
Length = x + 12
B.If
x = 10,l = x + 12 = 10 +12 = 22
length = 22
and
Area = x² + 12x = 10² + 12(10) = 100 + 120 = 220
area = 220 Hope this helps :)
Answer:
d = -15
Step-by-step explanation:
The slopes of perpendicular lines have a product of -1.
1/3·d/5 = -1
d/15 = -1 . . . . simplify
d = -15 . . . . . multiply by 15
Answer:
B
Step-by-step explanation:
3 times 3 equals 9. -3 times -3 equals 9.