I believe it is referred to as The Substitution Method.
Answer:
137 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees
180-43=137
Answer: 89
the 18th term is 4 + (18 - 1).5 = 4 + 17.5 = 89
Step-by-step explanation:
You have to solve for F so you need to get it by itself which means it would look like:
9/5C+32=F
Then you plug in 33 for C and solve. When you round to the nearest whole number, you get D. 91