150x0.8=120 (correct answers)
150-120=30 (incorrect answers)
she answered 30 questions incorrectly
-2.
You have to get rid of the 10, so you add 10. After you add ten, you add 10 to the 2. Now, your left with -6x=12. -6x divided by -6= 2, so 12–6=-2
First find the formula which is A(N)=A+(N-1)D then fill in what you know
N=term your looking for
A=first term
D= common diffrence
Once filled in you will get this 18(18)=18+(18-1)-6
then solve to get 324= -84
Your final answer is that the 18th term is -84
Hope I could help
Slope is rise/ run and rise/run is y/x. c?
Slope is m in y=mx+b
Therefore m or slope is 4/5