book Maths Puzzle Numerical Ability

Would anyone please help me write the slope please...

Write the slope-intercept form of the line through (0, -2) that is parallel to the line 5x + 4y =3

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book Other Question

A certain code is a sequence of five digits. What is the probability of generating five digits and getting the code 12345 if each digit CAN be repeated? yearly average of 35.18% and another of 33.43%, these are my answers but Im not sure how to figure out the number of successful repairs each candidate would make on 50 calls?

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