Leslie joins a fitness club that has an initial fee of $20 plus a monthly fee of $15, write it as a function of x below.
f(x)=

20 + 15x

Step-by-step explanation:

The initial fee is $20, and the monthly fee is $15. x is the amount of months, so f(x) = 20 + 15x

10010010001010010101001001010010100101010010101010010010101010110010001011010010010001

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40