Solve the system
-3y =-2x-7
-4x=-by-10
(-10, 5)
(10, 5)
no solution
infinite solutions

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?