Which matrix is equal to [3 2 -5 9]

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

Which shows the graph of the solution set of 3y – 2x > –18?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?