Answer:
Not accurate
Step-by-step explanation:
3+9+9=21
Answer:
6/10 is equivalent to 3/5, so is 9/15.
Step-by-step explanation:
Step-by-step explanation:

Answer:
x≥3
Step-by-step explanation:
7x-28≥-7
Add 28 to each side
7x-28+28≥-7+28
7x≥21
Divide by 7
7x/7≥21/7
x≥3