exam Maths Puzzle Numerical Ability

A temperature of 10°C corresponds to a temperature of 50°F. Also 40°C corresponds to 104°F. Find the linear equation relating F and C.

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exam Other Question
Graph each system of inequalities: 3x - 2y > 6 and x + y < 4 on one graph. What is the range of the function : -2(y-4)=5(^x+2) ? I think it is y such that y is greater than 4.