exam Maths Puzzle Numerical Ability

Please help me solve

f(5) + h (5)

if
f(x)=7x - 40
h(x)= -x^2 + 6x

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exam Other Question

I would appreciate help with the following :

Simplify by adding like terms :

-2^0x^2y^2x^-2 + 3y^2/x^2 - 4x^-2/y^-2 + 5y^2 I have to do the following problem and have no clue where to start. lease Help!!! Evaluate the following expression if x = 1.07, y= -4.12 and z = -3.76. Round your answer to the nearest tenth.
z2(2is an exponent)/ xy