book Maths Puzzle Numerical Ability

Write the slope-intercept form of the equation of the line passing through the
point (-2,3) and paralley to the line y=-5x-4.

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book Other Question

what is the radical equation of
square root x+6-square root x-3 = 3
An aquarium is 32 inches long, 15 inches wide and 24 inches high. the volume of water in the aquarium is 10,560 cubic inches. How deep is the water?

I know the formula for volume V=lwh but how do I set up and solve this problem?