Solve the problem.An archery set containing a bow and three arrows costs $52. Additional arrows can be purchased for $4 each. Gerri has $72 to spend on the set and additional arrows. Including the arrows in the set, what is the maximum total number of arrows Gerri can purchase?
A. at most 18 arrows
B. at most 8 arrows
C. at most 1 arrow(s)
D. at most 5 arrows
Answer: B
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Find any relative maximum or minimum points of the given function.y = -4x2 + 40x - 101
A. Maximum at (-1, 5) B. Maximum at (-5, 1) C. Maximum at (1, -5) D. Maximum at (5, -1)
Solve the problem.A technician has readings that take 1
minutes each to read and record. How many readings can be completed in 84 minutes?
A. 112 readings B. 63 readings C. 29 readings D. 9 readings
Solve the system using Gaussian elimination.
A. {(-4, 15, -21, -13)} B. {(1, 3, 0, 3)} C. {(2 + w, 1 - 2w, 4 + 2w, w )|w is any real number} D. {(2, 1, 4, 1)}
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of US. 
A. 0
B. 
C. 1
D. 