Christine is planning on selling handmade blanket. She has 1,000 blankets to sell and expects the number of blanket sold 10 fewer than her total number of black for every $1 she chargers for the blanket.

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

What is the slope of the line that contains the points (-2,1) and (0,-3)