Answer: S=360
Step-by-step explanation: Going by the giving question,then we are going to find the surface area of a rectangular prism=lbh
Therefore, let S represent Surface
S=6m×4m×15m
So, our final answer will now be
S=360
Answer:
X =9
Step-by-step explanation:

638-243 = 395 miles
rounding up, it would be 400 miles
321517 milileters and there you go
Let J = rate of jet in still airLet W = rate of wind Distance formula: d = rt / r = d/t Flying against the wind the jet flies at a rate of J - W = 1860 miles/3 hours = 620 miles per hourFlying with the wind the jet flies at a rate of J+W = 9180 miles/9 hours = 1020 miles per hour The average of these 2 rate is the speed of the jet in still air J = (620+1020)/2 = 820 miles per hour J - W = 620
820 - W = 620
W = 820 - 620 = 200 miles per hour The jet in still air flies at a rate of 820 mph(miles per hour)The wind speed is 200 mph(miles per hour)