11. Mr. Cooper asked his students whether they prefer to go to the aquarium or the
planetarium for a field trip. The table
shows the results.
Percent
Response
Aquarium
Planetarium
50
25
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Suppose the rest of the class had no
preference. What is the ratio of students
who have no preference to the students
who prefer to go to the aquarium?
A. 1:5
C. 1:3
B. 1:4
D. 1:2

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.

What are the values of each variable in the diagram below?

Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?