How many solutions does the system have 6 x + 2= y
3y-18x=12

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your