Translate the problem to a system of equations, then solve using matrices.A grain dealer sold to one customer 5 bushels of wheat, 2 of corn, and 3 of rye, for $18.50; to another, 2 of wheat, 3 of corn, and 5 of rye, for $22.50; and to a third, 3 of wheat, 5 of corn, and 2 of rye, for $19.50. What was the price per bushel for corn?
A. $2.00
B. $1.50
C. $2.50
D. $2.06
Answer: D
Mathematics
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Use the properties of logarithms to find the following.log3(9 ? 27)
A. log3 9 ? log3 27 = 6 B. log3 9 + log3 27 = 6 C. log3 9 + log3 27 = 5 D. log3 27 - log3 9 = 1
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Determine if a correlation exists at the indicated level of significance.
? = 0.05
A. Correlation exists. B. Correlation does not exist.
Mathematics
Without using a calculator, determine whether the first number is divisible by the second number.Is 210,270 divisible by 30?
A. Yes B. No
Mathematics
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the nail is 32 
.
A. cm B. m C. mm D. km
Mathematics