Are -4 ( x - 6) and -4 • x - 4 • 6 equivalent

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

What is the standard form of -5x^2+2x^4-11+x^3+3x

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?