Answer:
-5/8 + 6/8= 1/8
6/8 is the same thing as 3/4 btw so don't get confused.
Step-by-step explanation:
Prime factorize 20 and 45
x = 19
x + x + 4 + 3x - 9 = 90
5x - 5 = 90
5x = 95
b² = a² + c² - 2ac × cos (m∠B)
b² = 105² + 9² - 2(9)(105)cos65°
b ≈ 101.5
50
