If 9 lbs. of pasta salad serves 15 people, how much pasta salad should you bring to a picnic with 76 people

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

The trigonometric ratios sine and secant are reciprocals of each other