Milton purchases of 5 gallon aquarium for his bedroom to fill the ground with water uses the container with the capacity of 1 quart how many times will milton fill and empty the container before the aquarium is full

Ineed with number 17 i don’t get it at alll

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?

How can constraints be used to model a real-world situation?