Answer:
15
Step-by-step explanation:
Step-by-step explanation: I believe that's the answer because the hypotenuse in a 30 60 90 is x2 and 15x2=30
(3 x 3.1) + ((7-3) x 1.85) = 16.7 hours
I believe it is the third and the fifth
hope this helps :)
1/4
-1/2-(-1)-(1/4)
-1/2-(-1)
= 1/2
1/2-(1/4)
=1/4
So, -1/2-(-1)-(1/4)= 1/4
Hope this helps
-Amelia