What is the mean of the number 48,78,54,68

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?

The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.