Step-by-step explanation:

and we have 
so 

we have 
<em>Finally </em>
<em />
<em>I really hope this helps coz it took much time </em>
Answer:
Step-by-step explanation:
? do you really
?
The acceleration of the fire truck is 1.666 m/s².
<u>Step-by-step explanation:</u>
Acceleration is the measure of change in velocity with respect to time. So as the initial velocity of the fire truck is given as 0 km/hr and the final velocity is given as 66 km/hr. So at first the truck is at rest and on switching on the engine, the truck gets to the velocity of 66 km/hr in 11 seconds.

But first the units of velocity should be changed from km/hr to m/s
1 hour = 3600 seconds
1 km = 1000 m
So, 
Converted Velocity = 18.33 m/s
Then, the acceleration will be

Acceleration = 1.666 m/s²
So, the acceleration of the fire truck is 1.666 m/s².
Answer:
42
Step-by-step explanation:
To receive this answer:
- Divide the <u>30 orange marbles</u> with the <u>5 orange marbles</u>.
--This will give you 6
2. Multiply 6 with 7.
--This will then give you 42.
- Therefore, (with being checked...) 42 is the correct answer.