Sienna is solving the quadratic equation by completing the square.

3x2 9x - 4 = 0

3x2 9x = 4

a (x2 3x) = 4

what is the value of a?

-4

-3

3

4

Moving at its top speed a sloth would take 20 hours to go 3 miles on land. What's that in miles per hour

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Eight hundred thousand, six hundred twenty four in number form

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Let X = {5, 10, 15, 20, 25, 30, 35, 40}. Define a relation on X as follows. For a, b is in X, a b if b can be obtained from a by adding a (possibly empty) collection of dimes (10 cents) and quarters (25 cents). So, for example, 25 35, but 25 30.

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