exam Maths Puzzle Numerical Ability

Find an equation in standard from for each line that satisfies the given conditions.
Parallel to the x-axis and passes through (-1,3)

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exam Other Question

17) The length of a rectangle is 3 cm more than 2 times its width. If the area of the rectangle is 99 cm^2, find the dimensions of the rectangle to the nearest thousandth. Please help to solve

One solution was 10% alcohol and the other was 30% alcohol. HOw much of each should be used to get 200 gallons of a solution that is 17% alcohol?