A. Evaluate the algebraic expressions Let a = 4, b = -3, c = 0.6 , x = -3, y = 0.4 1. 5abc + bc - a 2. bxy + 2ab - ay B. Perform the indicated operations 1. . (2x4 – 5x2 + 4) + (5x3 – 2x2 – 5) 2. (2x3 – 7x2 + 3x – 8) –(6x3 + 3x2 +5x – 7) NOTE...NUMBER AFTER THE VARIABLES ARE THE EXPONENT

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Use this graph to find the cost of 6 show tickets