You will need 7 because 150 divided by 20 is 7
Yes because if you simplify 11/16 you would not get 3/4. Or a bwtter way is if you times 4 by 4 to get 16 as a denominator, then multiply 3 by 4 it equals more than 11/16.
A because 5/15 is 1/3 and you need to find the median
The answer is true.
Really all you ever need is two points and you should find an equation.