Why is it important to write numbers in different ways

Which is the simplified form of the expression (6-2.657-3?

Find the exact value of tan (cos^-1 (-5/13))

Rebbeca buy some scarves that cost $5 each and two purses that cost $12 each. The cost of the Rebeccas total purchases is $39. Write and solve an equation that can be used to find n, the number of scarves that Rebecca buys.

A Town had about 2120 acres of Pinetree's 40 years ago only about 13 of the Pinetree's remain how many acres of Pinetree's remain

A car is traveling at 5m/s. How far has it gone in 12seconds

Erica spent a total of $48.90 buying supplies to make smoothies. She bought a blender for $30 and bought 6 pounds of strawberries. What was the price per pound for strawberries?

In 1980, the United States' national debt exceeded $9 billion dollars. Express the exact dollar amount in scientific notation.

Each day a company use one half of a box of paper how many boxes would they have used after 8 days

Given 4c + 5 = 0 and c Is a real number what is the multiplicative inverse of 4c + 5?

How do I simplify 9/243