Question

Adina is starting a band and wants to buy a guitar and amplifier. The cost of the guitar is g(m) = 680 + 10m where m is time in months. The amplifier cost is represented by the function a(m) = 450 - 5m. Adina hopes to have

enough money saved up to buy both items in 4 months. How much will she need?
A. $1,070
B. $290
C. $1,190
D. $1,150

Answer 1

Answer:

option D.

Step by step solved:

Adina needs to find the total cost of the guitar and amplifier after 4 months.

The cost of the guitar after 4 months is given by g(4) = 680 + 10(4) = 720.

The cost of the amplifier after 4 months is given by a(4) = 450 - 5(4) = 430.

The total cost after 4 months is the sum of the cost of the guitar and the cost of the amplifier:

Total cost = 720 + 430 = 1150.

Therefore, Adina will need $1,150 to buy both items in 4 months.

Hence, the correct answer is option D.

Answer 2

b

Explanation:

its really easy when u read it multiple of times