C+a=166
a=166-c
5.3c+9.2a=1254.2
5.3c+9.2(166-c)=1254.2
5.3c+1527.2-9.2c=1254.2
5.3c-9.2c=1254.2-1527.2
-3.9c=-273
c=-273/-3.9
c=70
Hope this helps!
Answer:
yes; you can just remember that all the angles on a triangle equal 180 so just add the two angles, subtract from 180 to get your last angle degrees.
Answer:
the correct answer is A.I can’t be confident at all; this is about as close to a random guess as you can get.
Step-by-step explanation:
hope this helps
Answer:91
Step-by-step explanation:
If the best grade is 100,91 is it.