exam
Maths Puzzle
Numerical Ability
7x-19xy to the 2nd power
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exam Other Question
jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
3x - 2y = 8
-12 + 8y = 32