Find the angle of XZY

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Which of the following is correct interpretation of the expression -4+13

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