Solve the system of equations.4x+ y- 
z=42
x- 2z=15x- 4y=1
A. (-6, 3, -5)
B. (13, 3, -6)
C. (9, 2, -6)
D. (13, 20, -9)
Answer: C
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Write any percent as a decimal and any decimal as a percent.0.008 of all math majors at a certain university double major in music.
A. 0.8% B. 8 C. 0.08% D. 8%
A water system must be installed in a field as shown below. If the pipe comes in both 8-foot and 15-foot lengths, and cannot be cut, how many pipes of each length will be required?
Solve the problem. Round to the nearest dollar.Rainbow Ice Cream bought a frozen custard maker that cost $7500. The expected life is 7000 hours of production with a salvage value of $750. Find the book value at the end of the third year. Use the units-of-production method of depreciation given the following production schedule.Year 11810 hoursYear 21240 hoursYear 31500 hours
A. $2382 B. $4368.00 C. $3132 D. $2625
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 1
C. 
D. 