Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. what expression could be used if he wanted to figure out how much money he had left after 8 weeks?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?