Unless im reading it wrong the answer should be ten
Got you. So we will use the basic formula for the area of a rectangle and insert variable values. (^_^)
Area= Width(Height) ----------- Insert values of width and height [width = (x-1)
, height = (x+9)]
Area= (x-1)(x+9) ) -------------- Then expand if needed?
= x² +8x -9
4¹ = 4
4² = 16
4³ = 64
4⁴ = 256
(4⁵ = 1,024)
It should be B based off the shaded area
There will be 2 books left over if he fills each box.
7 · 4 = 28
30 - 28 = 2
Good Luck
