Wally purchased a bag of marbles on monday. on tuesday he gave half of the marbles to his brother, james. on wednesday he gave ten marbles to his sister. on thursday he gave twenty marbles to his other sister. wally had fifty marbles left. how many marbles did wally purchase on monday?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.