Where did the symbol used for pi originate?

In which case has the U. S. dollar weakened?

What is a/4-5/6=-1/2

in a last minute deal a holiday is reduced from £540 to £459. Calculate the percentage reduction in the price

Rycycled newspaper sells for 5.00 for 1 ton the united states recycled 6.6 millions tons of newspaper during 1991

A lot of 1115 components contains 275 that are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B be the event that the second component dràwn is defective.

Which equation forms a pair of linear equations with 9x+12y=48 such that the system has no soulution?

What is the percent of decrease from 155,000 to 140,00

A telephone company charges $0.30 for the first 4 minutes of a call and $0.18 for each additional minute. How long can a person talk for $3

determine if these equations are true or false A. 50 tens x 4 hundreds = 40 tens x 5 hundreds B. 24 x 10 x 90 = 90 x 2400

A shipment of 9 microwave ovens contains 2 defective units. A restaurant buys four of these units. What is the probability of the restaurant buying at least three nondefective units?