He would earn $169 because if he earns $130 in 10 hours that means he earns $13 per hour. You have to multiply 13 X 13 to see his earnings in 13 hours.
To solve the function we proceed as follows: 5c+4=2(c-5) opening the parentheses we get: 5c+4=2c-10 putting like terms together we get 5c-2c=-10-4 3c=-14 c=-14/3
