Mario’s younger brother is 2 3/4 tall. mario is 1 3/4 feet taller than his younger brother. which number line represents mario’s height, in feet?

Graph A - 4 1/2 feet

Step-by-step explanation:

Since Mario is taller that his younger brother - add the two heights together.

2 3/4 + 1 3/4 =

I added the whole numbers first 2 + 1 = 3; then the fractions 3/4 + 3/4 = 1 1/2

Add 3 + 1 1/2 = 4 1/2

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680