A factory produced 150 tons of steel in one year. The next year, the output increased to 180 tons. What is the percentage increase in the output? A.
17%
B.
20%
C.
30%
D.
50%
E.
75%

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

i have not got your picture clearly so see it once again

perimeter of the base times height

step-by-step explanation: