Answer:
<em>74,100</em>
Step-by-step explanation:
7.41 * 10^4 =
= 7.41 * 10,000
= 74,100
first one 401.76, second one 93.96
18
not too sure but I think its C or D
3/5
Cos(B) = adjacent/hypotenuse
Cos(B) = 48/80 = 6/10
Cos(B) = 3/5 or 0.6
