Use definite integrals to find the negative area bounded by x^3 and 4x

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20