What is the GCF of 21 and 30

A given project's expected duration along its critical path is 50 days, based on optimistic, most likely, and pessimistic duration estimates. What is the probability that the project will finish on or before 50 days?

What is cosine of 8pi/3

Rafael took piano lessons for 3.5 years. Then he took violin lessons for the next 2.8 years. How many years has Rafael taken music lessons?

Subtract. 4x2-5x+1 - (2x2+9x-6)

How much is 2/3 in a whole number?

Jade said that the amount of money Ebony took out of her account each day between Day 8 and Day 12 was the same amount of money she put into her account each day between Day 0 and Day 4. Recall that Day 12 is when the balance first reached $0.

Karyn proofread a 15 pages in 2 hours for $40. a. What is her proofreading rate per pages per hour? b. How much does she receive on average per a page?

The Norwood Tigers are having team shirts made. One option is to pay Harold's Tees a $41 setup fee and then buy the shirts for $10 each. Another option is to go to City Printing, paying $36 for a setup fee and an additional $15 per shirt.

The sum of the roots of the equation x 2 + x = 2 is:

3/5=a+5/25 A= Using proportional reasoning