9x+15=8x
subtract 15 and 8x from both sides to get
x=-15
Answer:
A
Step-by-step explanation:
if the triangles are similar the ange B and E are the same, A and D are the same and C and F are the same.
B=77 and E=77
F=31 and C=31
A=72 and D=72
Answer:
a. 135 doorknobs
b. 
Step-by-step explanation:
The price-demand function is:

a. At a price of $36.30, the number of doorknobs sold, 'x' is:

Rounding it down to the nearest whole unit, the company can sell 135 doorknobs at $36.30
b. Revenue is the product of the price, p(x), by the demand, x. Therefore, the Revenue function is:

Answer:
24
Step-by-step explanation:
multiply base x height