MATH ALGEBRA (2ND TIME POSTING! ) Please Help!! :)
posted by vid. .
The Cost of installing new kitchen cabinets is $150 for delivery for all the cabinets and an additional $45 to install each cabinet.
a) Develop a model to give the total cost for a set of n cabinets.
b) What is the total cost for a set of 18 cabinets?
c) Find the number of cabinets if the total cost was $735.
AND (2nd Question)
Membership in a tennis club costs $600 per year plus a $15 fee for each hour of court time.
a) Find a model that gives the total cost of playing tennis for h hours at this club in a year.
AND (3rd Question)
CoolCar rental agency charges $30 per day plus $.25 per mile.
a)Find a formula to compute the total cost of renting a car for on day and driving it for m miles.

You're more likely to get help if you post your answers and the parts you don't understand.

150 + cost per cabinet * number of cabinets
thus if n cabinets then
C = 150 + 45 n
C for 18 = 150 + 45 * 18
then 735 = 150 + 45 n
solve for n
Do the second one the same way.