A local pizza shop has a membership program for frequent buyers. The membership costs $25 per month and members get a discounted price of $2 per slice of pizza. Faith purchased a membership to this pizza shop. How much would Faith have to pay the pizza shop if she bought 18 slices of pizza this month? What would be the monthly cost for x slices of pizza?

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )