exam Maths Puzzle Numerical Ability

i need to solve this inequality 3x + 2 is less than or equal to 17

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exam Other Question

write a formula that expresses the realtionship described below. Match your result to the correct answer below.

r varies to t and r = -4 when t = 2 answer is r = -2t
I have not got it
8x^3-6x^2+2x
over
4x+1