Write a formula for the general term (the nth term) of the arithmetic sequence below. Then use the formula for an to find a20, the 20th term of the sequence.

2,5,8,11...

PLZ HELP I DONT UNDERSTAND

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?