A box contains red, blue, green, purple, and yellow crayons such that the probability of drawing a purple crayon is 3/7. An experiment consists of blindly choosing a crayon, replacing it, and choosing another crayon. The two draws are independent. A random variable assigns the number of purple crayons to each outcome. What is the range of the random variable?

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?