exam
Maths Puzzle
Numerical Ability
5/9y-4=6
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exam Other Question
Prove a^3-64/a^2-16=a^2+4a+16/a+4
20. Ken has worked at the same company for many years. The function A(t) gives his annual salary A at any time t, where t is the number of years after 1980.
a. Ken's friend Gabrie