Simplify 5 to the 5th over 5 to the 8th. 1 over 5 to the 3rd power 53 1 over 25 1 over 5 to the negative 3rd

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible