exam Maths Puzzle Numerical Ability

solve each problem but substitution
y=4x-7
y=2x+9

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exam Other Question

For the other side of the overpasss, the engineers have drawn the plands shown in the
figure. Find the degree measure of the angle maked z.
The following were given:
z-6
3x
z Suppose 240 square tiles, each 25 cm on a side, are needed to cover a rectangular floor. The floor is 5 meters long. How wide is the floor?