exam
Maths Puzzle
Numerical Ability
8=1-7x^2
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A can ofdeck stain will cover 150 ft squared. Howmany cans of stain should be purchased in order to stain a pyramid that has a single length of 20 ft. and a slant height of 25 ft.
The area of a rectangle of length x is given by 3x^2+5x. Find the width of the rectangle. Help please I do not understand this.