If it is 3kg, it will be:
40mins x 3 = 120mins
Add the extra 20 mins, it will be 140 mins. This equates to two hours and 20 minutes.
Answer:

Step-by-step explanation:
The distributive property says that the answer of multiplying two numbers is the same as multiplying the first number by the sum or subtraction of two numbers that result in the second number.
What we have to do is to simpligy the ecuation, this mean, making it shorter.
First we take out the common term of the ecuation:
.
By distributive property
then
.
Answer: 19 m
Step-by-step explanation: