Answer:
62.73°
step by step explanation
a) (2a - b)² = (4a² - 4ab + b²)
b) (10m - n²)² = (100m² - 20mn² + n⁴)
c) (4x - 4²) = (16x² - 8x + 4⁴)
d)
e)
f)
Answer: the answer is 27.1 km
Step-by-step explanation:
the answer is 24x..
you just have to add the numbers ....