exam Maths Puzzle Numerical Ability

if the cost of community colleges in 1992- 1993 was $1800 and it 2002-2003 it was $2200 what is the percent increase? and what is the euqation to solve a problem like this?

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exam Other Question

Find the function that is finally graphed after the folowing transformations are applied to the graph of y=sqroot of x.
1. Shift up 3 units
2. Reflect about the y-axis
3. Shift right 2 units I am having a hard time breaking this one down.

x^4+X^3-8^2+x-6/x^2+1