Answer:
She must sell 20 band posters
Step-by-step explanation:
Answer:
33
Step-by-step explanation:
Order of Operations:
1. Parenthesis
2. Exponents
3. Multiplication/Division (left to right)
4. Addition/Subtract (left to right)
Step 1: 9-(-8) • 3
Step 2: 9-(-24)
Step 3: 9 + 24
Answer: 33
The answer below (I need 20 characters to respond so just ignore the words between the parenthesis on this response)
Answer:
Look at the number line.
Step-by-step explanation:
Step 1: Draw a number line.
Step 2: Mark -4 on the number line.
Step 3: Here we have to subtract 8, therefore, from -4 move 8 units left, we end up at -12.
That is the answer. Here is the picture.
Hope this will help you.
Thank you.
Answer:
C). 0.39 grams
Step-by-step explanation:
First find how many half-lifes are in 3 hours:
3 hours ÷ 20 minutes = 9 half-lifes
Find the total left:
0.5^9*200 ≈ 0.39