Answer:
3a4b-c
3(4)4(3)-10
12(12)-10
144-10
=134
Step-by-step explanation:
Answer:
2 5 7
Step-by-step explanation:
hopefully it helps sorry if it wrong
Answer:

Step-by-step explanation:
This is because you use Pythagorean theorem. a^2 + b^2 = c^2.
189 inches is 15.75 feet
16 ft - 15.75 ft = 0.25 ft
0.25ft = 3 inches
He must vault 3 inches higher