book Maths Puzzle Numerical Ability

You need at least 25 more to buy a stareosystem. Write an inequality that describes how much money you need, s. Graph the inequality.

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book Other Question

tiger and sergio have entered a race for charity. tiger can walk ya yard, and sergio can walk yards per second. tiger gives sergio a 180 yard head start.

who will be ahead at4
please help me answer this equation: What is the midpoint between the line segment joining (3,7) and (7,-4)?