Solve the problem.Mrs. Smith's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the students surveyed own only a dog?
A. 18
B. 15
C. 22
D. 10
Answer: D
Mathematics
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Find the unit rate.195 miles on 13 gallons of gas
A. 2535 miles B. 15 miles/gallon C. 0.067 miles/gallon D. 208 gallons
Mathematics
Solve the problem.State whether the vectors v = 2i + 3j and w = 3i - 2j are orthogonal.
A. not orthogonal B. orthogonal
Mathematics
Find the zero of the linear function.H(x) = -5x + 35
A. -7 B. 30 C. 7 D. -30
Mathematics
State the domain of the rational function.f(x) = 
A. (-?, 7) ? (7, ?) B. (-?, -5) ? (-5, ?) C. (-?, - 5) ? (- 5, 5) ? (5, ?) D. (-?, ?)
Mathematics