The probability of randomly selecting a green marble from a bag is 45. if there are 110 marbles in the bag, how many are not green? 20 22 36 80 88 how do you work this out?

How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.