Answer:
476 balloons
Step-by-step explanation:
4 groups x 100 = 400 balloons
7 groups x 10 = 70 balloons
+6 balloons (leftover)
400+70+6= 476 balloons total for her party
Answer: 
Step-by-step explanation:
By the Pythagorean theorem, the unknown side has length

Therefore,
