hello, i just wanted to ask if my teacher's answer in range is correct, and the given question is attached below too, thank you! it's about comparing linear functions

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points