What does part a mean i dont understand
P E M D A S
Parentheses first:
So, 12 + 4 x 13 - 2
12 + 52 - 2
64 - 2
62
30% of the 30 marbles is nine and 9-30 = 21 so your answer is 21
The expression to represent this would be (m-18)/k.
We first subtract the 18 beads she used in her mother's bracelet from her beginning number, m. We then divide our result by k, the number of bracelets she made for her friends.
Answer:
-15
Step-by-step explanation: