Which decribes how you beed to pay a charged card bill

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

What describes horizontal cross section of the right rectangle 6m 8m 5m

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?