exam Maths Puzzle Numerical Ability

What is the graph of x=-4?

Read Solution (Total 0)

exam Other Question

Hi! I need some help to simplify and all exponents should be positive.

(2^-1a^2b)^-3
------------
4a^-9

and

(3x4y^3-5y)-(2x+3y^3-5y)
In the period of a year, an investor lost twice as much as he gained. If he originally had $10,000 and now has $8000, what amount did he gain and what did he lose?