Miss fisher lost 4% of her investment she had $21,600 what was the original investment

Me find the missing dimension of a triangle height: 7 in., area: 21^2

What aspects of lines have to be diffrent

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