math
posted by Jay .
A computer technician charges $40 for a house call and $38 per hour. The expression 40 + 38t is used to find the cost of a house call that lasts t hours.
What is the cost of a house call that last 3 hours?
Respond to this Question
Similar Questions

math
how would i write a equation if the company charges $38 for a house call and $26 per hour. the cost of a repair is a function of the time spent by the repair person. 
math
how would i write a equation if the company charges $38 for a house call and $26 per hour. the cost of a repair is a function of the time spent by the repair person. 
math
A phone compant uses the expression 1.25 + 0.10m to calculate the cost of a phone call that lasts m minutes. What is the cost of a call that last 20 minutes? 
programming
Write a program that computes the cost of a long distance call. The cost of the call is determined according to the following rate schedules. a.A call made between 8:00 AM and 6:00 PM is billed at a rate of 6 rupees per minute. b.A … 
math
The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. i got C= 0.75 + 0.25t am i correct? 
Math
The cost of a telephone call is $0.75 + $0.25 ties the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. 
algebra
The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. 
math
The cost C in dollars of having an electrician come to your house to do a repair job in h hours if he charges $16 for coming to the house and $30 for each hour. 
Math
Yin's cellphone plan costs $30 a month. She used 12.5 hours in May. What was her cost per minute? 
math
a plumber charges $25 for service call plus $50 per hour what is the cost 8 hours?