Express 86400 in scientific notation

If you want to place an 8 1/2 inch towel bar in the center of a door that is 25 1/2 wide, how much space will be on each side of the towel bar?

Write the expression (y 7) ^2 - 100 as the product of two linear binomials

Zach has two savings accounts with a total of $9,000

Solve: ax-b=c and 3x-b=a (these are two seperate questions)

Select all that apply. Which of the following will you construct in this lesson? octagon pentagon hexagon parallelogram rectangle

Estimate a 10% tip on a bill of $143.17 by first rounding the bill amount to the nearest ten dollars. Estimated tip: $il x 6 ?

What is 63 7/8-55 34

What is the area of a sector with a central angle of 210 degrees and a diameter of 4.6 m? Round the answer to the nearest tenth.

Assume that there are 12 students in the class, the front row has eight chairs, and the tutor, who is also a member of the class, must be seated next to Louise. How many different ways can we seat students in the first row?

163,160,157, ... find the 42nd term