Find the average of the first six composite numbers

The first six composite numbers are 4, 6, 8, 9, 10, 12. Their average is their total divided by their number.

... 49/6 = 8 1/6

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.

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24