Step-by-step explanation:
speed = distance/time
time = t = distance/speed
t = 180/b + (400-180)/c = 180/b + 220/c = 20(9/b + 11/c)
What is the question though
Answer:
1
Step-by-step explanation:
Amplitude is the greatest distance from the mean line/mid line

In other words, how many ways are there to choose

objects from a total of

objects? Just one; take all of them at the same time.
Answer:
6 units
Step-by-step explanation:
They are on the same y-point and so you just have to count the spaces between them on the x-axis.