Of all the registered automobiles in Colorado, 8% fail the state emissions test. Twelve automobiles are selected at random to undergo an emissions test. (a) Find the probability that exactly three of them fail the test.

(b) Find the probability that fewer than three of them fail the test.

(c) Find the probability that more than two of them fail the test.

(d) Would it be unusual for none of them to fail the test?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Combine like terms to make a simpler expression 3z+z

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.