Angle z makes a 180° angle when added to the angle of 124° in the first image, because they are on the same side of a straight line. Just subtract 124 from 180. =56
For the second picture, angle m will be the same as angle z because of the properties involved. Find angle z using the same thought process as above, and m will equal it. =55
The sum of the angles in a triangle is 180°, that's just a property they have. You add the two angles you know, subtract them from 180, and you have x. =47
-2 - 4n - 5n ≤ -11
-9n ≤ -11 + 2
-9n ≤ -9
n ≥ -9/-9
n ≥ 1
12
3
39
3
147
3
579
Just subtract each number
<span> (a) men ...extra information
</span><span>(b) hours to dig (c) holes
</span><span>(d) hours..............? holes
</span><span>
= (d) x (c)
---------------
b
</span>
Answer: Friday
Step-by-step explanation: I added all of them and Friday was the biggest number with 16.15