He bought 36 baseball cards. Since 3/4 of the 48 cards are baseball cards, you need to find 75% of 48, which is 75*48, which is 36 cards. Hope this helps.
Answer:
96 in
Step-by-step explanation:
Suppose that the number u were thinking about is x thus :

Multiply both sides by 4



Divide both sides by 3


Where did the 20 go
it just magically disappeared in the equation
-4(x-3)=20
-4x+12=20
move 12 to the other side , making it negative
-4x=20-12
-4x=8
x=-2