Mathematics

Wolfgang

20 January, 01:31

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=$