Determine if the expression 1 is a polynomial or not. If it is a polynomial, state the type and degree of the polynomial.

With #! i’ve tried to figure it out but i can’t.

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

9/10 divide by -3/15 as a mixed number