Answer:
2.8km
Step-by-step explanation:
a = sqrt(c^2-b^2)
a = sqrt(9.9^2 - 9.5^2)
a = sqrt(7.76)
a = 2.78567765544
Round that to 2.8 and there's your answer
-7/3
it's negative seven thirds
yes because you multiplying the sides
88.375
70 x 0.0825
70 x 0.18
70 + ^