Answer:
a) 4 tennis balls
Explanation:
Given information is,
→ 8 packs of tennis balls.
→ His friend has 7 tennis balls.
→ Cole has 25 tennis balls.
Now the total tennis balls will be,
→ 25 + 7 = 32 balls
Then tennis balls in each pack is,
→ 32 balls ÷ 8 packs
→ 32/8 = 4 balls
Hence, each pack has 4 tennis balls.