Answer:
I'll do each section below
Step-by-step explanation:
<u>First question = 15</u>
I'm going to assume that P and Q are equal so your equation would be:
8x+4 = 124
(-4 from both sides) => 8x = 120
(divide by 8 both sides) => x=15
<u>Second question = 129</u>
Angles on a straight line = 180 so your equation is:
5x+4+2x+1 = 180
(simplify) 7x+5 = 180
(-5) 7x = 175
(divide by 7) x = 25
Now since you are finding the obtuse angle you substitute this into 5x+4 and you should get 129
<u>Third question = angle y</u>
Adjacent just means next to so in this case the angle next to angle z is angle y
Hope this all helped, have a great day! :)
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