Answer:
b=9.
Step-by-step explanation:
Because 60 seconds= 1 minute and then 120 seconds=2 minutes, u multiply 10 ×12 to get to 120 seconds and then u multiply 4×12 which equals the answer which is 48.
Answer:
it will take 5.5 seconds to hit the ground
Step-by-step explanation:
A projectile is shot vertically from the ground level. It’s height h, in feet, after t seconds is given by 
When the projectile hits the ground then the height becomes 0


GCF is -8t

now set each factor =0 and solve for t


So it will take 5.5 seconds to hit the ground
Answer:
1:2
Step-by-step explanation:
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