<span>He bought 36 baseball cards. Since 3/4 of the 48 cards are baseball cards, you need to find 75% of 48, which is 36 cards. </span>
Answer:
C. ±square root of 30
Step-by-step explanation:
Apply the square root function to both sides of the equation:

_____
The absolute value equation has two solutions. They match choice C.
Answer:
18.3
18.3 only has three significant figures while the other numbers have more
Cindy needs to buy 8 packs of invitations.
Answer:8
Step-by-step explanation:
9 times 8 is 72