Use the net to find the lateral of the prism

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Can someone answer this question for me