7. Complete module 1- Advanced Problem Solving https://nrich. maths. org/10209

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?