→ 6x² - 2x - 20
→ 6x² + 10x - 12x - 20
→ x(6x + 10 ) - 2 (6x + 10)
→ (6x + 10) (x - 2) .
for
6x - 10 = 0
6x = 10
for x - 2
x = 2
1) circumference= 3.14 x 12
C= 37.68
It would be 0.125 because by converting percent to a decimal you must first multiply 0.0025 x 50.
Hope that helps