Don't tell me how to do it because i know the concept sorta, but i always get the wrong answer, are you able to tell me the answer and tell me how you got it? anyone? (pic included)

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

With finding limits of multi variable !

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