Solve the systems of equtions using the addition method. 
A. {(5, 4)}
B. no solution; ?
C. {(6, 3)}
D. {(6, 4)}
Answer: C
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Perform the indicated operation and write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Suppose Ingredient I is made up of 80% micoden and 20% water, Ingredient II is made up of 30% micoden, 50% bixon, and 20% water, and these ingredients are mixed together. How much micoden is in the mixture? INGREDIENT I INGREDIENT II MIXTURE 2 lb 11 lb 13 lb?
A. 1.6 lb B. 4.9 lb C. 2.2 lb D. 13 lb E. 3.3 lb
Use the zero-exponent rule to simplify the expression.-60 + (-6)0
A. 2 B. 6 C. 0 D. -2