T=19.2yd t=24yd t=6.67yd t=7.5yd find the length of t the trapezoids are similar

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

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

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?