Ten years ago, a printing company charged $15 to produce 100 ten-page brochures. every year, the cost increased by 2%

C[10] = $18.28

Step-by-step explanation:

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!