Solve. Express the result in scientific notation. If necessary, round the decimal factor to two decimal places.In a state with a population of 9,000,000 people, the average citizen spends $6,000 on housing each year. What is the total spent on housing for the state?
A. $54 × 1011
B. $5.4 × 1010
C. $54 × 1010
D. $5.4 × 109
Answer: B
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Solve the problem.A thermometer is taken from a room at 71°F to the outdoors where the temperature is 
Determine what the reading on the thermometer will be after 5 minutes, if the reading drops to 
after 1 minute. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
Fill in the blank(s) with the appropriate word(s).
Graph f by hand by first plotting points to determine the shape of the graph.f(x) = 5x2
A. 
B. 
C. 
D. 
Estimate by rounding as directed.15.9745 + 62.2267; nearest tenth
A. 77.9 B. 78.2 C. 78.4 D. 77.6
A person is selected at random from 80 people. The probability a college student is selected is 0.175. How many college students are in the group?
What will be an ideal response?