. A fitness center charges a membership fee and also charges a fee for each strength and cardio class. This table shows the linear relationship between the number of
month-long classes taken and the total cost, which includes the membership fee.

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?