Answer: is 1/14
Explanation:
63 study French
30 French not Spanish
63 study Spanish
Answer:
B. 
Step-by-step explanation:
Converting 60 hours to days:
24 hours = 1 day
60 hours = x day
Cross multiply

Divide both sides by 24 hours

Thus,

The expression that shows how to convert 60 hours to days is:

length of pipe= 30m
Inside dia. = 1.2m
Outside dia. = 1.8m
Volume of concrete= (outside dia. - inside dia.)h
V= (pi)
v= [(3.14*0.9*0.9)-(3.14*0.6*0.6)]30
v= (3.3534-1.1304)30
v=(2.233)30 = 66.690m cube
since it's volume the answer 66.690 is in cubic meters.