exam Maths Puzzle Numerical Ability

write equation in standard form?

y-7=4(x+4)

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exam Other Question

Multiply and Simplify: x^2-7x+12/x^2-6x+8 * x^2+6x+8/x^2-x-6 The speed of a plane is 120 miles per hour in a calm. With the wind it can cover a certain distance in 4 hours, but against the wind it can cover only 3/5 of that distance in the same time. Find the velocity of the wind.