the pertinent area formula is a = πr², where r is the radius.
here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²
1/8 3/16 3/4
you put them as all the same denominator and multiply
you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n