Click the pair of numbers that is relatively prime.
a. 4 and 22
b. 7 and 126
c. 21 and 35
d. 25 and 27

Average acceleration: i have no idea how to do this.

Acircle has a circumference of 7.850 units. what is its radius?

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.