22 - 1 = -3d
21= -3d
21/-3= d
-7 = d
Bring the 1 to the other side by doing the opposite sign, so subtract 1. Solve the left side.
Bring the 3 to the other side by doing the opposite sign, so divide 21 by -3.
End with D equaling -7
Answer:
S={1, 1, 2, 2, 3, 4}
Probability of spinning a 1 = 1 in 3 or 33%
Step-by-step explanation:
The sample space is the set of all possible outcomes in an experiment. The outcomes here are the numbers in each section of the spinner: 1, 1, 2, 2, 3, 4. The sample space is:
S={1, 1, 2, 2, 3, 4}
Two out of six possible outcomes are "1s", therefore the probability of spinnin a 1 is:

The probability of spinning a 1 is 1 in 3 or 33%.
There will be $3000 interest. He will pay $23,000 total.
Hope this helps and please give brainliest!