There were 400 lb of coal at a factory. Every day, 50 pounds were used. Express by a formula the dependence of the quantity of coal, p, in pounds, on time, t, in days.

Marisa needs 1.4 hours to comeplete 7 homework problems. How long does each problem take? A: 0.1 hours B: 0.2 hours C: 0.7 hours or D: 1 hour?

Use the scatter plot that shows the domestic traveler spending. Predict the amount of spending for domestic travelers in 2010. a. about $640,000,000 C. about $640 b. about $460,000,000,000 d. about $640,000,000,000

Jimmy jogged 2/3 mile in 1/12 hour. What was his speed in miles per hour?

12 coins are tossed and placed in a line. each coin can either show a head or a tail

A pole that is 3m tall casts a shadow 1.33m long. at the same time, a nearby tower casts a shadow that is 40.75m long how tall is the tower? Round your answeanswer to the nearest meter

Which of the following is the equation of a circle with a radius of 5 cm and center at (3, 6) ? (x 3) 2 + (y + 6) 2 = 10 (x 3) 2 + (y + 6) 2 = 25 (x + 3) 2 + (y 6) 2 = 25 (x + 3) 2 + (y 6) 2 = 10

A sociologist studying the difference in ages between husbands and wives obtained a random sample of 55 married couples. The mean of the husbands' ages was 38.5 years with standard deviation 12.6 years. The mean of the wives' ages was 36.

The parent function is f (x) = 2^x-6+3 and the new function is g (x) = 2^x - 3+2. How does the graph change from f (x) to g (x) ? Select each correct answer. The graph is shifted 3 units right. The graph is shifted 1 unit up.

Dennis thought of a number. He adds 0.5 to that number and then multiplies the new result by 4. He then subtracts 2 and divides the number by 2. His final answer is 48. What number did Dennis start with?

Melinda is itemizing deductions on her federal income tax return. Her AGI was $295,420 last year, and she contributed $148,160 to charity.