four friends got take-out from an italian restaurant. they bought a pizza for $15.50, pasta for $16.05, chicken for $20.25, and salad for $8.20, and paid a 10% sales tax. they split the bill evenly. how much did each friend pay?

you need to add a picture

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1