Find the mode in this frequency distribution.

Number Frequency

61 12

62 3

63 11

64 21

65 10

66 3

What is the mode?

a. 61

b. 63

c. 64

d. 65

Show that a∧6 can be written as a perfect square and as a perfect cube.

Larry is making custom signs to sell at his shop. The cost of making each sign is $50 plus $4.50 per sign, he will sell them for $15 each. Find the number of signs he must sell to make a profit

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