19 12 A company makes 12 different types of television. The cost (in dollars) and screen size (in centimetres) of each type of television are shown in the scatter diagram. 900 800 700 600 500 Cost ($) 400 300 200 100 0 40 50 60 70 80 90 100 110 120 Screen size (cm) (a) Write down the cost of the television that has a screen size of 65 cm. $ [1] (b) The company is introducing a new television with a screen size of 85 cm. Put a ring around the cost that you think would be most appropriate for the new television. $320 $530 $690 $800 Explain your answer.

What is the length of bc ? enter your answer in the box.bc =

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.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?