Achildren's book has dimensions 20 cm by 24 cm.

what scale factor should be used to make an enlarged version that has dimensions 25 cm by 30 cm?

a. 5
b. 1.5
c. 1.25
d. 0.8

Strawberries cause two hours per pound kate buys 5 pounds he gets 20% off discount on the total cost how much does kate pay for the strawberries

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.