Your friend says that the volume of a sphere with radius r is four times the volume of a cone with radius r. When is this true? Justify your answer.

On a recent survey, 60% of those surveyed indicated that they preferred walking to running. If 540 people preferred walking, how many people were surveyed?

1/4 3/16 common denominator

33 students are going on a field trip4 students can ride in each carHow many cars will they need for the field trip? Possible Answers: 12 8 9 10 11

Solve the equation of exponential decay. Hugo sold his car after one year for $25,000. He bought it new for $29,400. What was the rate of depreciation?

Johann baked 24 cookies for a picnic with his friends. Of the 10 friends he invited, 7 friends were able to attend the picnic.

You want to install wall-to-wall carpeting in your room. The room is 10 feet by 14 feet. What is the actual cost for carpeting if the carpeting costs $18.89 per square yard?

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: