What do you need help with?
For how many books he got : 4
This is but adding up 3 of $3.95 to get the total of $11.85
You then want to subtract that from $47.65 to get $34.80
You subtract that by the $8.95 4 times so you see he bought 4 books
After you talk about how many books did he buy after that sentence I’m not sure what your saying
Answer:
b = 9cm is the answer.
Step-by-step explanation:
a = 12cm
b = ?
c = 15cm
By using the Pythagoras theorem,
a² + b² = c²
12² + b² = 15²
144 + b² = 225
b² = 225 - 144
b² = 81
b = 9cm.
∴ b = 9cm is the length of the missing leg.