An investigator finds a hair and silk fiber at a crime scene. Back on the lab, all evidence is logged and weighed. The hair weights 5 * 10^-5 g and the fiber weights 2.2 * 10^-4 g. How much does the fiber weight than the hair?

Explain how you can tell if the expressions 7x-4 and 6x-4-X are equivalent using the interactive tool

Monday LeeAnn left home at 8:45 a. m. to go shopping. She returned at 7:35 p. m. How was she away from home?

A mouse can travel 8 miles per hour. Write an equation to find the total distance "d" a mouse can travel in "h" hours.

Find the unit rate a) 180 miles in 3 hours (how many miles in 1 hour) b) 256 miles per 8 gallons (how many miles per gallon) c) $9.60 for 4 pounds (how much per pound) d) $4.80 for 6 cans (how much per can) e) 297 words in 5.

If the length of one side of a square is 12.0 m, what is the perimeter of the square? express the perimeter to three significant figures and include the appropriate units.

A widget company made 3,600 widgets in 4 hours. they made the same number of widgets each hour. how many widgets did the company make in one hour?

How do you write the equation the quotient of 100 and twice 25 is equal to 2

Isabel divided 32 by 8 and got 4. She says that if she divides 32 by 4, the quotient will be greater than 4. Is she correct? Explain.

At Huge University, a sample of 200 business school seniors showed that 26 planned to pursue an MBA degree, compared with 120 of 800 arts and sciences seniors. We want to know if the proportion is higher in the arts and sciences group.

Write as fraction 0.1748