3 is what percentage of 12?
I know that the answer is 25 but how do you calculate it mentally?

25? i don't really understand what u are asking for

Step-by-step explanation:

In your head, you can convert the fraction 3/12 into a decimal. So divide 3 by 12 and you would get 0.25. I hope this helps :)

Step-by-step explanation:

the anwser is d) 75°

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph