Prove that the value of the expression: (125^2+25^2) (5^2-1) is divisible by 39

Barbara is tiling her craft roo. floor with square tiles. She wants 6:10 of the square tiles to be red. If she uses 18 red tiles, how many square tiles will be used to cover the floor?

It take 2 2/3 spoons of chocolate syrup to make 3 2/3 gallons of milk. how many spoons of syrup will it take to make 6 gallons of chocolate milk

Express the sum or difference as a product of sines and/or cosines. sin (55) + sin (35)

What does factorial of several numbers mean?

5.301 * 10 ^7 in standard form

What are the x-intercepts of the graph of the function below? y = x2 + 2x-15

What is the leading coefficient of the polynomial when written in standard form 8x^2+9+5x^3

Benito saves $6 out of every $20 he earns. He earned $90 one month. How much did he save?

You purchase a $220 online ticket you have a discount code to receive 10% off. There is a 10.5% service charge added to the total. How much do you pay for your ticket?

In a 45°-45°-90° triangle, the length of the hypotenuse is 11. Find the length of one of the legs