In 1998, Mary Meagher set the women's world swimming record for the 100-m butterfly. She swam the distance in 57.93 seconds. On average, how long did she take to swim 10 m?

Each of 8 samples has a different standard deviation. How many of the 8 samples could be from the same population?

Place them in order from greatest to least. 0.143 0.043 1.043 1.438 1.43

Steve is going to buy lunch for himself and his friends at a hot dog stand. A hot dog costs $3.25 and a cheeseburger costs $4.50. Write an equation that represents the possible combinations of how many of each he can buy for $15.

Assume that the last two digits on a car number plate are equally likely to be any of the one hundred outcomes {00, 01, 02, ... 98, 99}. 1. Peter bets Paul, at even money, that at least 2 of the next n cars seen will have the same last two digits.

Jasmine wants to buy 4 green bags for 18 dollars each and 3 purple bags for 15 dollars each. She has 100 dollars. How much more money does she need?

Solve the equation for y: - 8x + 4y = 20

Use an equation to solve. 20% of what number is 47? A. 236.5 B. 232 C. 237.5 D. 235

Decompose the number 80

Darrell has $1,990 saved and wants to buy a motorcycle. He earns $10 per hour and he works for 39 hours. Estimate how much money, Darrell has left after buying a $2,200 motorcycle.

Which type of triangle will always have exactly 1-fold reflectional symmetry?