Astack of bricks is 3 1/2 feet high. if each brick is 1 3/4 inches high, how many bricks are in the stack?

The number of bricks= Total height of stack/ height of a single brick.
No. of bricks=3 1/2 ÷ 1 3/4
Convert the fractions into improper fractions;
No. of bricks= 7/2÷7/4
No. of bricks= 
No. of bricks= 2

What class is this? i have no idea and i'm not going to give you the wrong answer. do you have a graph that goes with all the questions