Solve the problem.Use the formula M = log (I/I0), where the magnitude of an earthquake on the Richter scale is based on I, the measurement of a seismic wave, and I0, the measurement of a seismic wave of a level zero earthquake with the same epicenter. An earthquake was recorded as 107.5 times more powerful than a reference level zero earthquake. What was the magnitude of this earthquake on the Richter scale? Round to the nearest tenth.
A. 2.5
B. 7.5
C. 17.5
D. 17.3
Answer: B
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Classify by type (cardinal, ordinal, or nominal) the number that appears in the sentence.The baby gained four ounces since his last check-up.
A. Nominal B. Ordinal C. Cardinal
Verify the identity.
= 
What will be an ideal response?
Provide an appropriate response.Tell whether the statement is true or false. If it is false, give the correct answer. Explain your answer. The easiest way to simplify the expression 
is to multiply both the numerator and denominator of 
by 
.
What will be an ideal response?
Solve the problem.The total number of cars sold at a used car lot for the years 1996 and 1997 was 1276. From 1996 to 1997 the number of cars sold declined by 158. How many cars were sold in 1997?
A. 569 B. 553 C. 565 D. 559