Montell is 30 years younger than his mother. In 5 years, Montell's age will be 1/3 of his mother's age. Find Montell's mother's age now

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge