Solve the sum of two numbers is 23. one number is one less than twice the other. find the two numbers

Find an equation for the linear function which has slope -10 and x-intercept -7

43lbs of tomatos cost $387. how much would 41lbs cost

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?