A model of a statue is 10
10
inches tall. The scale factor of the model to the actual statue is
\frac{5}{2}
2
5


inches = 8 feet
inches=8feet
. How tall is the actual statue?

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

What is the number 321,000,000 in scientific notation? also what is the number? ?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?