exam Maths Puzzle Numerical Ability

A ball is dropped from 144ft. above the ground. How long does it take to hit the ground?

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exam Other Question

find the area of a triangle with sides of length 9 and 24 and included angle 12degrees. Round to the nearest tenth.
I have 22.5, but I believe I did this wrong since I seen an example using trig functions, can someone please help. substitution method
2x-y=-5
x+5y=14