(Based off the Apollo 13 movie) The "lifeboat" that the three astronauts used to survive in on their way back to Earth, was only
designed for two astronauts. Because of this, a problem developed that required NASA engineers to come
up with a unique solution. What was the life threatening problem that developed?

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.