Identify two factors that have a product of 1 7/8 so to factors that you multiply to get 1 7/8

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Plz hurry evaluate the expression a+b where a=8 and b=19