Answer:33
Step-by-step explanation:
3850/(155-45)
=3850/115
=33.4
Round up to 33.
Hope this helps and please follow me;)
0.393701 is your answer :)
A is 7 4 and 3..B is the same...This is my first time with this kind of problem....
You literally need to apply the formula

where
is the mass and
is the speed