Below are two parallel lines with a third line intersecting them

X=|_|°

Fred bought 3 cd’s for $16.50 is this multiplication division subtraction or addition

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

Given abcd ac=38 and ae=3x+4 find the value of x