This number is standard form ninety billion.
Answer:82537
Step-by-step explanation:
Answer:
Your answer would be the first option.
A right angle is 90 degrees
An obtuse angle is more than 90 degrees and that angle is more that 90 degrees
Part A)
vertical angles are equal so
3x - 8 = 2x+12
x = 20
3(20) - 8 = 60 - 8 = 52
part B)
straight angle = 180
so
52 + y = 180
y = 180 - 52
y = 128