Solve the problem.If the mass of an object is 2.43984 × 102 tons and its volume is 3.12 × 103 cubic feet, find the density of this object. (Use the formula D = 
.)
A. 7.82 × 10-3 tons per cubic foot
B. 78.2 × 10-2 tons per cubic foot
C. 7.82 × 10-1 tons per cubic foot
D. 7.82 × 10-2 tons per cubic foot
Answer: D
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Identify the figure as a line, segment, or ray. Then use the correct symbol to name the figure.
A. line; 
B. line segment; 
C. line; 
D. ray; 
List all numbers from the set that are of the type indicated.
Rational numbers
A. 
, 
, 
, 
B. 
, 
, 
C. 
, 
, 
, 
, 
D. 
, 
, 
, 
, 
Solve the problem. Round to the nearest cent.On September 1, the unpaid balance in an account was $147. On September 5, a payment of $20 was made. The interest rate per month was 1.7% per month of the average daily balance. Find the finance charge for the month of September.
A. $2.16 B. $2.13 C. $2.22 D. $4.66
Subtract.-10 - 15
A. -5 B. -25 C. 5 D. 25