1. what is the greatest common factor of 20x^6y+40x^4y^2−10x^5y^5 ?

a. 5x^2y^5

b. 10x^4y

c. 5x^4y

d. 20x^6y

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Aswimming pool measures 22ft by 12ft and is 4ft deep. if the pool is being filled at 2.5 cubic ft per minute, how long will it take to fill the pool?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice