Ineed solving these problems--images down below.
on the long word problem, i was given hints:
x=less than 5 weeks
y=less than 200
- use substitution instead of graphing.

If g(x) is an odd function, which function must be an even function?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?