What is 1x+3(1/2-5)=20?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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

Can some one explain this i got sent this. is this a threat i’m scared