Which of the following is an example of a combination? A. Selecting a first-, second-, and third-place winner at a beauty
competition
B. Picking 4 sets of towels out of 20 different sets
C. The number of ways 12 picture frames can be arranged in a row
on a shelf
D. The number of ways 3 people can win 3 different prizes

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

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.

if you was gonna solve for a, a is a   < -12