exam Maths Puzzle Numerical Ability

If p = –2 and q = –1, evaluate 3p^2 + 3q.
3(-2)^2 + 3*(-1)=
I cam up with 9. Is this right?

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exam Other Question

The base of a triangle is 6 cm greater than the height. The area is 20 cm^2. Find the height and the length of the base.

The height is ____ cm.
The base is ______ cm.

Is that enough information to help me? What is the constant varation in the equation 5x-3y=0?
a.-3 b.-5/3 c.-3/5 d.5