Simplify.
A. 16
B. 
C. 
D. none of these
Answer: B
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Solve the problem.Julio has found that his new car gets 36 miles per gallon on the highway and 31 miles per gallon in the city. He recently drove 314 miles on 9 gallons of gasoline. How many miles did he drive on the highway? How many miles did he drive in the city?
A. 252 miles on the highway, 62 miles in the city B. 238 miles on the highway, 76 miles in the city C. 231 miles on the highway, 83 miles in the city D. 217 miles on the highway, 97 miles in the city
Solve the problem.Suppose that y = 
can be used to calculate the number of years y for x percent of a population of 
sparrows to die. Approximate the percentage (to the nearest whole per cent) of 
sparrows that died after 3 years.
A. 97% B. 87% C. 89% D. 85%
Graph f as a solid line and f-1 as a dashed line in the same rectangular coordinate space. Use interval notation to give the domain and range of f and f-1.f(x) = (x + 3)3
A. 
f domain = (-?, ?); range = (-?, ?)
f-1 domain = (-?, ?); range = (-?, ?)
B. 
f domain = (-?, ?); range = (-?, ?)
f-1 domain = (-?, ?); range = (-?, ?)
C. 
f domain = (-?, ?); range = (-?, ?)
f-1 domain = (-?, ?); range = (-?, ?)
D. 
f domain = (-?, ?); range = (-?, ?)
f-1 domain = (-?, ?); range = (-?, ?)
Without graphing, find the line of symmetry.f(x) = -(x + 2)2 + 8
A. x = -2 B. x = 3 C. x = 4 D. x = 8