exam Maths Puzzle Numerical Ability

solve the inequalities
6(2x - 1) + 3 < x + 7

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exam Other Question

can someone please help me with this question;

Find and simplify the difference quotient f(x+h)-f(x) / h , h =(with slash through the = sign) 0 for the given function.

f(x) = 3x - 9

a. 3 + 6(x-9)/h
b. 0
c. 3
d. 3 + -18/h x2-6x+8/3x+9(x+3/x2-4)