If 879 people where at a basketball game and after halftime 199 people left how many people where left

This is simple.

Take the total number of people that were at the game in the beginning and subtrct the number of people that left.

879 - 199 = 680

680 people were left at the basketball game.

marco saved more.   he saved $35 more.

step-by-step explanation:

1+2+3+4+5+6+7+8+9+10 = 55

2*10 = 20

55-20 = 35

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.