Find the half-life of an element which decays by 3.411% each day. Hint: use y = ab^t.

4⅛-3¾:1 1/7 change to improper fraction and solve

If you go out to eat with 3 friends and your meal was $87.850, there is 7.75% sales tax and you should tip the waiter 20%. How much should each person pay?

Find the solution to the system of equations graphed here. A) (-1, - 3) B) (1, - 3) 9 (1,3) D) (3,1) Answer

A pitcher's earned run average is calculated by the formula E = 9R/1, where E represents the number of earned runs allowed, and I represents the number of innings pitched. Solve the formula for R. a. R = IE-9 b. R = 9EI c. R = IE/9 d. R = E / (91)

Carmen ran 2 laps around the track in 6 minutes. What are the unit rates in laps per minute and minutes per lap?

A sphere has a radius of 1.5 inches. What is the volume of the sphere rounded to the nearest tenth? Use 3.14 for pi. 9.0 in³ 14.1 in³ 28.3 in³ 36.4 in³

Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 12% buy fewer than two tires, with 6% buying none. Construct a cumulative probability distribution for the number of tires bought.

If a train with an average speed of 60 miles per hour travels for 20 minutes, how far will it have gone?

What value of x makes the equation true? 3 (x - 4) = 15 a - 1 b 1 c 7 d 9

What is the area of a classroom with a length of 30 feet and width of 15 feet