Arestaurant charges a mandatory 15% tip for parties containing more than 6 people. a party of 10 people was charged $52.50 as a tip. what is the amount of the bill?

i do not know this sorry : (

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!

it's