Evaluate the expression 2x + 3; if x = 3

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?