Question

Please solve the all questions with explanation and i will mark you as brainlist!☺️​

Answer 1

Step-by-step explanation:

1. 80%

=80/100

=8/10

=4/5

2. 57 1/7%

=400/7%

=400/7/100

=400/700.

=4/7

3. 137 1/2%

=275/2%

=275/200.

=55/40

=11/8

4. ,444 4/9%

4000/9%

=4000/900

=40/9

let side of square=x

area=x²m²

if side is increased 40%

then side=40/100*x

=2/*x

then increased side=x+2/5*x

5x+2x/5

=7x/5

area=7x/5*7x/5

=49x²/25m²

increase in area

49x²/25-x²

=49x²-25x²/25

=24x²/25

area increase in %=increase in area/initial area*100

=24x²/25/x²*100

=24x²/25x²*100

=24/25*100

=24*4

=96%

hope this helps you