A train can be either early, late or on time.

The probability that the train is early is 0.2
the probability that the train is on time is 0.5

work out the probability that the train is late

0.3

Step-by-step explanation:

Probability always adds up to 1 or 100%

in this case 0.2 + 0.5 = 0.7

1.0 - 0.7 = 0.3

hope this helps! :)

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk