Acustomer buys four products priced at $18, $22, $35 and $40 from the same store. the customer returns the most expensive product and gets a refund for that one product. how much money did the customer end up spending at that store?

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4