Brenda is selling two different nut mixes as snacks. Mix A has 3 oz. of cashews and 7 oz. of almonds. Mix B has 6 oz. of cashews and 5 oz. of almonds. Which inequalities represent the number of mix A mixes, A, and mix B mixes, B, Brenda can make if she has 72 oz. of cashews and 84 oz. of almonds? 3A+7B≤72
6A+5B≤84

3A+7B≤84
6A+5B≤72

6A+3B≤72
5A+7B≤84

3A+6B≤72
7A+5B≤84