Jared bought a package of pens containing 20 pens. If 3/4 of the pens had black ink, how do you determine the number of pens with black ink?

a manufacturer of cotter pins knows that 5% of his product is defective. if he sells cotter pins in boxes of 100 and guarantes that not more then 4 pins will be defective. what is the probability that a box will fail to meet the guranteed quality?

If a binomial event has a probability of success of 0.3, how many successes would you expect out of 2000 trials

If my bill was 58.65? and the tip was 15% how much would I pay

Which of the following statements best describes the domain of the functions cosine and arcos? A. Cosine domain is all real numbers; Arccos domain is all real numbers. B. Cosine domain is restricted; Arccos domain is all real numbers. C.

9 - 2x = 19 What is x

Ashley purchased a prepaid phone card for $ 25. Long distance calls cost 17 cents a minute using this card. Ashley used her card only once to make a long distance call. If the remaining credit on her card is $ 21.

If joe drives 30 mph for 0.5 hours and then 80 mph for 2 hrs, then how far did he drive?

The rectangle below has an area of 24x^3 square meters and a length of 4x meters. What is the width of the rectangle?

The purity of gold is listed in karats. If a necklace is 75% what karat is it

The area of a square is 144 square inches. Find the perimeter