PLEASE HELP!!! The probability distribution for the number of defective lava lamps a factory produces is shown in the table. Find the expected number of defective lava lamps in a week.

X 0 1 2 3 4 5 6
P(X) .01 .05 .15 .21 .22 .30 .06

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?