A polling organization contacts 1657 undergraduates who attend a university and live in the United States and asks whether or not they had spent more than $200 on food in the last month.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5