the dimension of a rectangular plot is [7p+4q] and [3p+8p] unita respectively. Find the area of the plot when p=2 and q=1

The area of the rectangular plot is 396 square unit.

Step-by-step explanation:

let [7p + 4q ] = length of the rectangular plot. And

[ 3p+8p ] = width of the rectangular plot

given that p=2 and q=1

substitute them in the expression for the length

length=7 (2) + 4 (1)

length=14+4

length=18units

again subject the values for p and q into the expression for the width

width=3 (2) + 8 (2)

width=6+16

width=22units

but mathematically,

Area of a rectangular plot

= Length*width

A=L*W

given L=18units and W=22units

A=18units * 22units

A=396 square unit.