What is 3 times 4 time 20

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

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?

Can someone me do math because i am having a breakdown rn because i don’t get it