For the following system, subtract the second equation from the first equation.
3x - 4y = 7
3x + 2y = -5
what is the resulting equation in simplest form?

-6y = -12
-6y = 12
-2y = -12
2y =12

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters