6q + 8 = -9 - 76

a. 12
b. -12
c. 84
d. -84​

the answer will be -15.5, but this number is not in the choices given, so I guess you made a mistake while writing the equation

Step-by-step explanation:

6q+8=-9-76

6q+8=-85               Subtract 8 from both sides

6q=-93                   Divide both sides by 6

q=-15.5

Step-by-step explanation:

As per the statement:

Product A:

f(x) = 400(1.08)^x

Product B:

g(x) = 320x

We have to write function h(x) representing the difference in the number of units sold for product A and the number of units sold for product B.

h(x) = The difference in the number of units sold for product A and the number of units sold for product B

⇒

Substitute the given values we have;

where,

x represents the number of months the products have been on the market.