Solve by substitution.4x + y = 0x = 
y + 2
A. (1, -4)
B. (1, 8)
C. No solution
D. (-1, 4)
Answer: A
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Solve the problem.Suppose A0dollars is deposited in a savings account paying 6.0% interest compounded continuously. After x years the account will contain 
dollars. If $210 is initially deposited, after how many years (to the nearest tenth) would the account have $2600 in it?
A. 131.1 B. -41.9 C. 2.1 D. 41.9
Solve the problem.The volume V (in cubic inches) of a cylindrical pipe with length 12 inches is given by V(r) = 12?r2, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the volume V of the pipe as a function of the time t.
What will be an ideal response?
Match the equation to its graph.x2 = -7y
A. 
B. 
C. 
D. 
Provide an appropriate response.In a raffle 1000 tickets are being sold at $1.00 each. The first prize is $100, and there are 3 second prizes fo $50 each. By how much does the price of a ticket exceed its expected value?
A. $1.00 B. $0.75 C. $1.75 D. $50