Answer: 50%
Step 1 add 18+20 = 38
Step 2 add 10+9= 19
Step 3 divide 19 by 38 = 2
So if would be half which is equal to 50%
Answer:
I think it is 7x+5y=40. Tell me if I'm right because don't think I am.
Step-by-step explanation:
Answer:
<h2>C. -5; -135, -10,935</h2>
Step-by-step explanation:

Percent error = (estimate - real)/(real) * 100
percent error = (78.25 - 75.50)/(75.50) * 100
percent error = 3.6%
Answer:
a
Step-by-step explanation:
because I have did this at school