Determine whether the equation is linear or nonlinear. 7x - 3y = 7
A. Linear
B. Nonlinear
Answer: A
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Solve.Find the eccentricity of an ellipse whose vertices are (0, -54) and (0, 54) and whose foci are (0, -34) and 
Fill in the blank(s) with the appropriate word(s).
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. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Use the elimination method by addition to find the solution for the following system.
A. x = 1, y = 0
B. x = 0, y = - 
C. x = 5k + 1, y = k, for any real number k.
D. The system is inconsistent.
Solve the problem.A box of instant brownies has the list of ingredients shown in the table. Use this information to find the amount of the stated ingredient you would need to make the indicated number of servings.
Water3 tablespoonsOil
cupNuts
cupBrownie Mix2
cupsAmount of oil for 15 servings
A. 1
tablespoon(s)
B. 
cup
C. 
cup
D. 
cup