PLEASE ANSWER THIS QUESTION CORRECTLY, I’LL GIVE YOU BRANLIEST! PLEASEEE answer my other math questions if you solve this one, thank you.

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

2.5 milligrams is equivalent to how many grams

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