book Maths Puzzle Numerical Ability

f(x)=x^3+2 graph and solve

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book Other Question

The sum of the angle measures of any triangle is 180 degrees. Find the angle measures of a triangle if the second angle measures 10 degrees less than twice the first, and the third angle measures 25 degrees more than the second. What is the equation of the line passing through the points
(-3,8) and (-4,-5)

A)y=13x-47
B)y=13x+47
C)y=13x-31
D)y=-13x-31

Please show me all your work so that I can learn how to do this..thanks