7 times 10 is 70, so in total the friends got that amount, but we aren’t done, because we still need to add the roll that he kept for himself, so it’s 71. Notice that it didn’t say he left a whole bag for himself, just one roll.
The surface area of the cube is 1536 square feet because (16×16)×6=1536 square feet. Hope it help!
Answer: [0,3]
The line is going up from left to right between 0 and 3 on the x-axis. We use a closed bracket because it is a open circle.
28, because when you divide you get about 28. good luck!