Answer:
Step-by-step explanation:
84
Answer:
B
Step-by-step explanation:
Answer:
ab, ac, bc
Step-by-step explanation:
a=30, b=60, c=180-(30+60) = 180-90=90
Answer:
n+1
Step-by-step explanation:
justt do ur calculation
Answer:
19/5
Step-by-step explanation:
5x+1=20
5x=20-1
5x=19
x=19/5