Divide 123kg in a ratio of 3:3:5

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?