Y is inversely proportional to a cubed when a = 2, y= 10 A is directly proportional to x when x=4, a=10

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

Option 1: $30 an hour plus a nonrefundable deposit of $50 option 2: $20 an hour plus a nonrefundable deposit of $75 kyle is renting a jetski for the day. if he can rent the jetski in one hour increments, what is the minimum number of hours must he rent the jetski for option 2 to be a better deal then option 1?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.