Solve. Write the answer as a mixed number in simplest form.Harry cuts a board 
feet long from one 20 feet long. How long is the remaining piece?
A. 11 ft
B. 10
ft
C. 11
ft
D. 10
ft
Answer: B
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Change to the measure indicated.1.345 decigrams to grams
A. 0.01345 g B. 0.1345 g C. 13.45 g D. 134.5 g
Use least common multiple or greatest common divisor to solve the problem.Planets A, B, and C orbit a certain star once every 3, 5, and 18 months, respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again?
A. 26 months B. 90 months C. 270 months D. 54 months
Rewrite as an equivalent exponential equation. Do not solve.logw z = -15
A. (-15)w = z B. zw = -15 C. w-15 = z D. z-15 = w
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 27
B. x = 9
C. x = 
, x = - 
D. none