I'm not too sure, hopefully the image helps you in some way
Set it up X/15=60/100 cross multiply to set up an equation 100X=900 and X=9. then you add 9 to 15 to get 24.
Answer:
Step-by-step explanation:
-4x+8=2x+10
8=6x+10
-2=6x
x=-1/3
Answer: 121°
Step-by-step explanation: