exam Maths Puzzle Numerical Ability

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13x + 21 = 60

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exam Other Question

graph the two lines y1=3*-5 and y2=-7x+4on the same graph. use algebra to find the coordinates of their point of intersection to 3 decimal places A wall of the basement is 32 feet by 8 feet. The wall is to be constructed with masonry blocks that have lengths of 16 inches and widths of 8 inches. About how many masonry blocks are needed to build the wall?