Mark is attempting to build muscle mass and so he needs to eat at least an additional 80 grams of protein a day. a bottle of protein water costs $3.20 and a protein bar costs $1.75. the protein water supplies 27 grams of protein and the bar supplies 16 grams. he has $10 dollars to spend. let w represent the number of bottles of protein water mark drinks and let b represent number protein bars he eats. write a system of inequalities to model this situation.