A phone company charges for service according to the formula

C(n) = 28 + 0.2n,

where n is the number of minutes talked, and

C(n)

is the monthly charge, in dollars. Find the rate of change. Interpret the rate of change.For every additional minute talked, the monthly charge ---Select--- decreases increases by $ . Find the initial value. Interpret the initial value.When there are no minutes talked, initially the charge is