16 because 25% of 20 is 4 so 4 question were choice B. Then, I subtracted 20 by 4 and got 16. I hope that helped! :)
B is an Obtuse angle! and I’m 100% sure!
r/3 + t = w to get r by itself (Which I think is your question)
r/3 + t = w subtract t from both sides
r/3 = w - t and times by 3 on both sides
r = 3(w-t)
(-2,6)
for example
x+1/2y=1
the ordered pair i will use is the first one. (-2, 6)
so
(-2) + 1/2(6)=1
from there it is a simple add/subtract and multiply/divide math problem.
1/2(6)=3
so
(-2) + 3 = 1
yes this ordered pair works for the solution meaning it is the answer.
3(8)-12=12
24-12=12
The fourth choice.
Yeah I think you already got it