Solve the problem.If an earthquake measured 5.4 on the Richter scale, what was the intensity of the earthquake? Use the formula 
A. 251,189
B. 25,119
C. 199,526
D. 221
Answer: A
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Change the given polar coordinates (r, ?) to Cartesian coordinates (x, y).
A. (5
, 5)
B. (10
, 10
)
C. (10, 10)
D. (5
, 5
)
Solve the problem.Jamie sells handcrafted dolls at local art fairs. She sells small dolls for $15 and large dolls for $60. At the end of the Little Town Art Fair, she determined that the total amount she made by selling 12 dolls was $315. Determine the number of small and the number of large dolls that she sold.
A. 4 small, 8 large B. 8 small, 4 large C. 9 small, 3 large D. 3 small, 9 large
Solve.The amount of water used to take a shower varies directly as the amount of time that the shower is in use. A shower lasting 20 minutes requires 10 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 50 gallons B. 2 gallons C. 8 gallons D. 2.5 gallons
Write the digit for the given place value in the whole number.4,681,257millionsthousands
A. millions 4 thousands 1 B. millions 2 thousands 5 C. millions 6 thousands 1 D. millions 4 thousands 8