Last year the price of the phone, in dollars, was c. This year the cost of the phone increased by 15%. What is an expression for the price of the phone this year?

1.15c= cell phone cost

Step-by-step explanation:

this is because if last year cost C and this year increase 15%, that can be expressed in .15c as a decimal from.

if we combine the cost of last year C plus .15c that is the percent that increase that result in 1.15c that will give you the new cost

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3