Fiona and her friends went to a smoothie shop. They ordered three strawberry smoothies and two protein shakes for a total of 24 point 0 0 dollars Last week they ordered one strawberry smoothie and four protein shakes for a total of 25 point 5 0 dollars The system that represents their purchases is shown. x plus 4 y is equal to 25 point 5 0; 3 x plus 2 y is equal to 24 point 0 0 What is the price of a protein shake?