Megan has 23 marbles, and jack has 22.about how many marbles do they have altogether.

a. about 30 marbles
b. about 70 marbles
c. about 40 marbles
d. about 60 marbles

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.