book Maths Puzzle Numerical Ability

number of hours distance traveled

1 55mi
3 165mi
5 275mi

q: write an equation to model the relationship in each tabl

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book Other Question

{(x+2)-y}{(X+2)+y}

is this a perfect square
ay + 3a + 2y + 6 / ay + 3a + 5y + 15