Lines L and M are parallel. 3/4
2 5
16
38° 7
-L
<-M
:
Find : m_1
Enter the number that
belongs in the green box.
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 The measure of angle 1 is 142°

Step-by-step explanation:  ∠6 = 38°

∠6 and ∠1 are supplementary, so the total m∠6 + m∠1 = 180°

180° - 38° = 142°

BTW Angles 1, 3, 5 & 7 are all 142° Also, supplementary angles include 2&3, 3&4, 4&5, 2&5, 6&7

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1