Calvin wants to earn an average grade of 90% in his algebra class. he already has the following scores on assignments: 90%,95%,85%,80%,97%.what mist he score on his next assingment to earn the average he wants?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?