Ihave some questions that need to be answered fast.

1. 42/j = 35/55

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

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%