An mp3 player costs $80. a student has a coupon for 1 4 off. the student saves $7 per week. assuming the price of the mp3 player does not change, how long will it take the student to save enough to buy it?

a) 8 weeks
b) 9 weeks
c) 11 weeks
d) 12 weeks

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

With finding limits of multi variable !