Which equation is an identity? A. 7m-2=8m+4-m B. 11-(2v+3)=-2v-8 C. 8y+9=8y-3 D. 5w+8-w=6w-2(w-4)

Can someone answer this question for me

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?

Which expression and diagram represent “renee biked four times as far this month as last month”?