Answer:
C
Step-by-step explanation:
C is showing what happens when you get the first part done of the expression
18 Quarters and 1 dime/2 nickels
4 quarters = $1.00
4 quarters x 4 = $4.00
2 quarters = 50 cents
$4.00 + 50 cents = $4.50
1 dime = 10 cents
2 nickels = 10 cents
(you can choose to add 1 dime or 2 nickels to $4.50)
Answer: 12 coins
Step-by-step explanation:When you add up all the coins you get 80. 15% of 80 is 12.
What is the sum written in scientific notation?