27. The square of a number is 8 more than 420 minus 347. What is the
number?​

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Which number completes the inequality? 2/3 < _ < 7/9