Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.(500)(40,000)
A. 2.0 × 106
B. 2.0 × 109
C. 2.0 × 107
D. 2.0 × 108
Answer: C
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What is the maximum value of 
? Restrict your attention to the horizontal span of 0 to 20. Round your answer to two decimal places.
?
A. 1.30 B. 4.58 C. 0.07 D. 7.66
Solve the proportion for the given variable.
= 
A. 12
B. 
C. 20
D. 2
Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
Complete the factoring.3x2 = 3x( )
A. 2 B. x2 C. x D. 9