A quantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. What is the value of the quantity after 0.5 days, to the nearest hundredth?

Forty trucks and SUVs participated in a 30 mile race. The average driving speeds of the trucks and SUVs were recorded. Two random samples of 11 each were taken.

Use the model from problem 12 to estimate the population of bacteria 9 hours

Michael goes to the fair with 3 friends. They each ride 4 rides at $4.25 per ride. Two of them buy cotton candy for $3.50 each. Michael buys a slice of pizza for $4.50, and his friend has a hot dog for $4.00.

If x+y=4 and x-y=a then what does x equal

Mindy and Troy combined ate 99 pieces of the wedding cake. Mindy ate 3 pieces of cake and Troy had 1/4 of the total cake.

The expression below represents the cost, c, of an item that is on sale for 25% off. c-0.25c what equation is equivalent?

If an element has 8 electrons, how many of them will be in the 2nd energy level

Which ordered pair is the solution to the system of linear equations - 5x+y=26 and 2x-7y=16? (-4, 6) (6, - 4) (-4, - 6) (-6, - 4)

What is the mean of 104,20,8,104

Pamela bought an electric drill at 80% of the regular price. She paid $32 for the drill. What was the regular price?