Quick! for how many two-digit positive integers does the product of the digits come out to 12?

4

Step-by-step explanation:

12=2x6=3x4,so the only two-digit positive integers the product of whose digits is 12 are 26, 62, 34, and 43, for a total of 4 integers.

- Artofproblemsolving

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed