exam
Maths Puzzle
Numerical Ability
Graph a line that passes through (4, -2) and is perpendicular to a line whose slope is -3.
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exam Other Question
1/2 + 2a + 6b + 2/3 + 12a + 16b
Find the sum of the first fifteen terms of the geometric series:
2-3+4.5-6.75+10.125