X + 3x + 4x = 56
8x = 56
x = 7
The shortest piece is 7 inches
The middle piece is 7*3 = 21 inches.
The longest piece is 4*7 = 28 inches
Check
7 + 21 + 28 = 56 It does check and the lengths are correct.
Answer: 
Step-by-step explanation:
The average speed of the car is 40 miles per hour:

The car drives for 45 minutes:

Since 1 hours has 60 minutes, we can convert the time from minutes to hours:

Knowing these values, we can use the following formula for calculate the distace "d":

Therefore, substituting values into the formula, we get:

Answer: actually its 4
Step-by-step explanation:
your answer is c 29. To figure this out take 59-180= 121. Then add 121 and 30 =151. next subtract 151 from 180 and you get C 29