An experiment, the temperature fell 48°F in 8 minutes. If the temperature fell at the same rate every minute, how many degrees did it change each minute?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

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?