I'm confused on these questions. Can someone explain to me how to solve them?

Question

1.p+12>9

A.p>21
B.p>3
C.p>-21
D.p>-3

2.m-7<6

A.m<-1
B.m>1
C.m<13
D.m<-13

Answer 1

When solving inequations, follow the same steps as you would for ordinary equations,
EXCEPT, if you multiply or divide by a negative, you must reverse the inequality sign.

e.g.
2(x - 5) > 4(x + 7)
2x - 10 > 4x + 28, the same as you would for equation
2x - 4x > 28 + 10 , the same as equation
-2x > 28, the same as equation
x < -14 , notice I divided by -2, thus > became <

so yours,
p + 12 > 9
p > 9-12
P > -3

do the 2nd the same way

Answer 2

Thank you, Reiny!

Answer 3

My answer for number 2 is m<13. Is that correct?