a. Charge for the first 30 minutes = $7.00
Charge for the next 15 minutes = $1.00
Since, the charge for next 15 minutes or part of 15 minutes is $1.00
Charge for the next 1 minute = $1.00
Therefore, the total charge for 46 minutes = $7.00 + $1.00 + $1.00 = $9.00
b. The piecewise function is given by
3.3.47 & Skill Builder Question Help lis An internet cafe charges $7.00 for the first 30...