Find the exact or approximate circumference of the circle, as indicated.Find the exact circumference.
A. 60? mi
B. 30? mi
C. 15? mi
D. 900? mi
Answer: B
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Evaluate the expression.
A. 906,192 B. 863,040 C. 992 D. 29,760
Solve the problem.Brad invests $1500 in an account paying 3.5% compounded monthly. How much is in the account after 7 months?
A. $1530.41 B. $1908.42 C. $1502.55 D. $1530.89
Write a word name for the number in the sentence.One gallon is equal to 3.7853 liters.
A. Thirty seven thousand and eight hundred fifty-three ten-thousandths B. Thirty seven thousand and eight hundred fifty-three hundredths C. Three and seven thousand eight hundred fifty-three thousandths D. Three and seven thousand eight hundred fifty-three ten-thousandths
Solve.Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is $1.70. The total cost to regrind 100 platens is $400. Find the linear cost function to regrind platens. If reground platens sell for $10.90 each, how many must be reground and sold to break even?
A. C(x) = 1.70x + 230; 19 platens B. C(x) = 1.70x + 400; 44 platens C. C(x) = 1.70x + 230; 25 platens D. C(x) = 1.70x + 400; 32 platens