Letter a refers to b., i need with b , thx love! ^-^

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 large angle is 36 more than the smaller angle. what is the measure of the large angle?

What line represents the relationship between r and s