Ok so what I would do Is I would do 3 x p=m
Is is b I am sure that is the right
Equation: 120 ≥ 10n + 20
Subtract 20 from both sides,
100 ≥ 10n
Divide both sides by 10,
10 ≥ n
It means, it is equal or Smaller than 10.
So, the answers would be: 7, 8, 9, 10
Hope this helps!
12x+1=-7
-1 -1
12x=-6
/12 /12
x=-1/2 or x=-0.5