Use long division to determine the decimal equivalent of 8/9
0.3
0.4
0.5
0.8

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.