Membership warehouse clubs offer shoppers low prices, along with rewards of cash back on club purchases. If the yearly fee for a warehouse club membership is $100 and the reward rate is 4% on club purchases for the year, then the linear equation y = 100 - 0.04x models the actual yearly cost of the membership y, in dollars. Here x represents the
yearly amount of club purchases, also in dollars.
a) Determine the actual yearly cost of the membership if club purchases for the year
are $1800
b) What amount of club purchases would reduce the actual yearly cost of the membership
to 550
c) How much would a member have to spend in yearly club purchases to reduce the
yearly membership cost to 50?
a) The actual yearly cost of the membership If club purchases for the year are $1800 is $[
(Simplify your answer. Type an integer or a decimal)