Estimate the following mentally.90 + 53 - 253 + 410
A. 700
B. 625
C. 300
D. 350
Answer: C
Mathematics
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Solve the application.With each turn, a nut moves 
inch on a bolt. How many turns will it take for the nut to move 
inch?
A. 9 turns
B. 10 turns
C. 
turns
D. 225 turns
Mathematics
Write as a single logarithm.
log7 x + log7 y
A. log7 
B. log7 
C. log7 
D. log7 y
Mathematics
Solve the problem.A square plywood platform has a perimeter which is 6 times the length of a side, decreased by 10. Find the length of a side.
A. 7 B. 1 C. 2 D. 5
Mathematics
Solve the following system by any appropriate method. If there is no real number solution, so state.x2 + y2 - 100 = 03y = x + 10
A. (-10, 0), (8, 6)
B. (0, 
), (6, 
)
C. (0, 
), (0, - 
), (6, 
)
D. (10, 0), (-10, 0), (8, 6)
Mathematics