It looks like the scale is balanced so that means you can set one side equal to the other which leaves you with the equation x+(-10)=-16
To get x by itself add x to each side to get x=-6
X=-6 is your answer
2/20 aka 1/10- hope this helped!
C for total cookies
C=1.15n
5% tax of 135.69
Multiply 135.69 * .05 = 6.7845
5% tax of 135.69 is 6.78
135.69+6.78=142.47
14*3=42
142.47 + 42 = 184.47
Gary will pay $184.47 in all.
Hope this helps you! (:
-Hamilton1757