exam
Maths Puzzle
Numerical Ability
An airplane traveling at 450 mph enters a region with a headwind of 25 mph. How long will it take the plane to travel 950 miles into this wind?
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exam Other Question
Instructions: Perform the indicated operations.
What is the solution for -4x^2(5x^4-3x^2+x-2)
-14<7x<21