Identify the following as an equation or an expression.m = 12 - 7m
A. Expression
B. Equation
Answer: B
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Write the sum or difference as a product containing only sines and/or cosines.sin(6?) - sin(2?)
A. 2 cos(2?) cos(4?) B. 2 sin(2?) cos(4?) C. 2 sin(2?) D. 2 sin(4?) cos(2?)
Solve.A community garden contains 30 rectangular plots each measuring 4 yd by 8 yd. What is the total area available for gardening?
A. 720 yd2 B. 960 yd2 C. 32 yd2 D. 990 yd2
Solve the problem.Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. What is the postage for a letter weighing 
Is the postage function continuous?
A. 33 cents; 55 cents; 77 cents; no B. 55 cents; 77 cents; 77 cents; no C. 55 cents; 55 cents; 77 cents; no D. 55 cents; 55 cents; 77 cents; yes