Question

A parallelogram with a base of x units and a height of y units is changed
to have a new base of 4x units and a height of 7x units. If the area of the
original parallelogram is 31 square units, determine the area of the new
parallelogram.

Answer 1

Answer:

868 (third option)

Step-by-step explanation:

we know that the area of original is $xy=31$.

the new parallelogram will has area $4x\times 7y = 28xy=28\times 31=868$