3. Letizia y Marta han ido de compras al super mercado para aprovechar las rebajas. La primera ha comprado un pantalón de S/42 y una camisa de S/23 y, la segunda, un suéter de S/28 y un par de zapatos de S/60. Después de aplicar los descuentos, Letizia ha pagado S/52y Marta, S/74,8.
Calcular los porcentajes de descuentos que cada una recibió.

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to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

30

step-by-step explanation:

times by times