Ach Sunday, Mario weighs himself. Here are his weight changes over a 4-week period. Week 1 2 3 4 Weight Change –1.8 +0.9 –1.4 +0.4 How much has Mario's weight changed over the entire 4 weeks? a. 4.5 pounds b. –1.9 pounds c. –4.5 pounds d. 1.9 pounds
B. All you do is -1.8 + 0.9 - 1.4 + 0.4, and you get -1.9 And if you want to see for your self just open a new tab on google and type in the numbers like the format i put it in and google calculator will give you the answer!