F(x)-mx+ b, f(-2)=3 and f(4)=1 , what is the value of m and b

Andrea went to the store to buy sweater that was on sale for 40% off the original price it was then put on clearance an additional 25% off the sale price she also use a coupon that saved her an additional five dollars and j did not spend more than $7.60 for the sweater what are the possible values for the original price of the sweater?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be