Solve the problem.A cross-country skier reaches the 11-km mark of a race 40 min after reaching the 
mark. Find the speed of the skier.
A. 
km/hr
B. 7 km/hr
C. 21 km/hr
D. 
km/hr
Answer: D
Mathematics
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Use the information given in the figure.
How many are in set A?
A. 31 B. 26 C. 22 D. 33
Mathematics
Provide an appropriate response.The only consecutive whole numbers that are both prime numbers are 
and 
.
A. 2 and 3 B. 1 and 2 C. 0 and 1 D. 6 and 7
Mathematics
Identify the place occupied by the underlined digit.
38,145
A. Tens B. Hundred thousands C. Thousands D. Ten thousands
Mathematics
Factor completely. If the polynomial is prime, so state.8x2 + 18x + 9
A. (2x + 3)(4x + 3) B. (8x + 3)(x + 3) C. (2x - 3)(4x - 3) D. prime
Mathematics