Answer:
21x20= 420
Step-by-step explanation:
The answer is the last bubble 52 as the parentheses are negative so it makes what’s in the parentheses negative and -13/-1/4w = w=52
Answer:
This is not a proportion
Step-by-step explanation:
Set up a proportion
9/6 = 2/1
Check with cross products
9*1 = 6*2
9 = 12
This is not true so they are not proportional