12 = 2*2*3
10 = 5*2
LCM = 5*3*2*2
= 15*4=60
the least common multiple is 60
Answer:
$22.75
Step-by-step explanation:
first you want to put money over pounds giving you 5.6/0.8 now u divide to get the rate (7).
Now since you know that you got the rate you want to times 3.25 by 7 (22.75)
Answer: 5 s
Step-by-step explanation:
Given
Height of the rocket can be modelled as 
Rocket will land on earth when it's height becomes 0

Neglecting 0 value
Thus, rocket remains in air for 5 s.