It takes harland 15 minutes to rake all leaves in the front yard. if trudy scatters the leaves while harland rakes, it takes him 20 minutes to rake the leaves. how many minutes does it take trudy to scatter all the leaves?

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

With #! i’ve tried to figure it out but i can’t.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable