7 freshman, 6 sophomore, 6 juniors, and 6 seniors are eligible. In how many ways can 12 students be chosen if it is to consist of exactly 2 juniors and exactly 3 seniors, the rest must be freshman or sophomores?

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

step-by-step explanation: 4 cause 2+2=4

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0