Ms Yost has 20 boxes of markers. Next year, she plans to buy 420% more boxes. How many boxes will she have in all?

She will have 104 boxes.

Step-by-step explanation:

Thing of it like this:

100% of 20 is 20, so 400% would be 80. Then the last 20% could be answered like this:

divide 20 by 10. Since it is 20%, multiply by 2. You get 4. Add the sums to get 104. The reason you divide 20 by 10 is because its easier and since 2x10 is 20, then 20/10 is reasonable.

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