Answer:
x= 13
Step-by-step explanation:
x + 8 = 21
x + 8-8 = 21-8
x = 13
I took a picture so you can see the steps I took! hope that helps!
Answer:
I want to say 19.5 months
Step-by-step explanation:
30+20=50
420-50=370
370÷20=18.5
18.5 plus the initial month is 19.5 months
Answer:
20
Step-by-step explanation: