A telephone company offers a monthly cellular phone plan for $ 39.99 It includes 300 anytime minutes plus $ 0.25 per minute for
additional minutes. The following function is used to compute the monthly cost for a subscriber, where x is the number of anytime minutes used.
Upper C left parenthesis x right parenthesis equalsC(x) =39.99
if 0 less than x less than or equals 3000 < x ≤300
0.25 x minus 35.010.25x−35.01
if x greater than 300x > 300
Compute the monthly cost of the cellular phone for use of the following anytime minutes.
(a) 170=$
(b) 335=$
(c) 301=$
