Multiply or divide measurement numbers, rounding to the correct precision.9 ft × 13 ft
A. 137 sq ft
B. 127 sq ft
C. 117 sq ft
D. 107 sq ft
Answer: C
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (-1, 1) for 3x - 
+ 3x2y2 = 0.
A. 
B. - 
C. - 
D. 
Solve the problem.Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 19 seconds to try each one, how long would it take to try every possibility?
A. 285 minutes B. 9.5 minutes C. 31.7 minutes D. 316.7 minutes
Divide and simplify.
÷ - 
A. - 
B. - 
C. 
D. 
For the measured quantity, state the set of numbers that is most appropriate to describe it. Choose from the natural numbers, integers, or rational numbers.Numbers of sales of cakes at a bakery
A. Integers B. Rational numbers C. Natural numbers