book Maths Puzzle Numerical Ability

if the box has a surface area of 214cm squared, find the the value of x. side1 is x+1, side 2 is x+2 and side 3 is x

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book Other Question

The access ramp to an expressway is 850 feet long. The measure of the angle of elevation is 4 degrees.About how long is the expressway from the horizontal at the beginning of the ramp? The sum of 5 and a negative integer is greater than -4 and less than 0. How many possible negative intergers satisfy the information?