20 points me i'm s confused write a number sentence to represent the sum modeled on the number line. in two or more complete sentences, explain your reasoning.

its -2.5 +5.0=2.5

Step-by-step explanation:

the blue line and red line are to know the difference.

and positive and negative. So the blue line goes to the right a total of 5 times with no decimal remander and the red line only goes to the left -2.5 times so its like adding and subtracting but easier.

-2.5+(+5)=+2.5

First we start a number from zero

Then, the arrow to whatever it counts, we count the number of scrolls we collect with that number.

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

addition

step-by-step explanation: