How would you solve this using the linear combination method?

((not elimination or substitution))

3x + 2y - 3z = -2
7x - 2y + 5z = -14
2x + 4y + z = 6

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.