The owner of a bookstore buys used books from customers for $1.50 each. The owner then resells the used books for 400% of the amount he paid for them.
What is the price of a used book in this bookstore?

need the answer

Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Which equation represents h for right triangle abc