Answer:
11
Step-by-step explanation:

Answer:
7
Step-by-step explanation:
x-3=4
x=4+3
x=7
The average speed is the ratio between the distance covered, and the time elapsed to cover that distance.
The total distance is the sum of the three distances covered:

Similarly, the total time elapsed is

So, althought you didn't always travelled with the same speed, you globally covered 170km in 1.75 hours. This leads to an average speed of

Answer:
a
Step-by-step explanation:
because you get more than you do in choice b
$30
You need to add $4 to $26 since the tomatoes were 26 dollars and she received 4 back