A survey of Mr. Young's class shows that 1 out of 3 students are going to buy a pool pass for the summer. Based on this result, how many of the 630 students in the school are expected to buy a pool pass?

210 students

Step-by-step explanation:

1/3 of 620 is 210

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.

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