exam Maths Puzzle Numerical Ability

Find the domain of f(x)=7+ sqrt 3x+21 and express it using interval notation.

Find the inverse of the function f(x)= x^1/3+2.

Find the information in the table providing valu

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exam Other Question

I do not remeber how to solve these. Can you pleas help.

x^-4y(y^-1 + 2x^-4p^-2)
_____ ____ _________
p^2 (x^4 y^-1 )

thank you

"Bob takes 7 hours to mow his lawn. Sally mows the same lawn in 4 hours. How long will it take them together.?
What is the formula to solve this question?"