5x and y cost 11 the cost of 2x subtracted from the cost of x is 3. find the sum of the cost of x and y

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?