exam Maths Puzzle Numerical Ability

You have exactly $100 to spend. You must get 100 animals. The chicks cost $0.10 each, the pigs cost $2.00 each, and the sheep cost $5.00 each. You must get some of each animal. How many of each animoal can you get?

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exam Other Question

L has y-intercept (0,2)and is perpendicular to the line with equation 2x-3y=6. Solve the equation:

sqrtx+4 = 3

I tried to keep this seperated because the square root is x + 4.

I am going to assume I need to make X equal the 3 leaving me with this:
X= -1
sqrt-1+4 = 3
Is this the right process?