Jason budgets 28% of his $1,500 income each month for food. how much money does he have to spend for everything else?

Can someone me do math because i am having a breakdown rn because i don’t get it

What is the difference between the equations of a vertical and a horizontal line?

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?