exam Maths Puzzle Numerical Ability

can you please help me find the domain, range, intercepts and asymptotes for the function, f(x)=(3/(x+2))

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exam Other Question

A 30 foot ladder leaning up againist a building makes an angle of 30 degrees with the building. How high up the wall is the ladder from the ground? In a sports ground,20% area is occupied by chairs, 60% area is open.In the remaining area of 1600 sq meter, there are different sport activities held.what is the total area of the ground??
a, 4,800 sq meter
b, 5,000 sq meter
c, 8,000 sq meter
d, 10,000 sq meter