Solve the problem.Janet drove 312 km, and the trip took 4 hr. At what average rate was Janet traveling?
A. 78 km/hr
B. 79 km/hr
C. 1248 km/hr
D. 
km/hr
Answer: A
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Approximate the given square root to the nearest tenth using the guess-and-check method.
A. 2.1 B. 2.2 C. 2.3 D. 3.2
In each group of four products, one is wrong. Use estimation to determine which product is incorrect.
A. 181 × 90 = 16,290 B. 213 × 32 = 6816 C. 4034 × 60 = 242,040 D. 41 × 432 = 18,233
Solve the problem.The graph of a function is given below. Tell whether the graph could possibly be the graph of a polynomial function. If it could be the graph of a polynomial function, tell which of the following are possible degrees for the polynomial function: 3, 4, 5, 6.
A. yes; 5, 6 B. yes; 6 only C. yes; 4, 6 D. no
Determine the slope and the y-intercept of the graph of the equation.12x - 10y - 120 = 0
A. m = 
; (0, -12)
B. m = - 
; (0, 12)
C. m = 12; (0, 120)
D. m = 
; (0, 10)