Answer:

Step-by-step explanation:
Given Equation:

Actually the given equation is the 2nd equation of motion
i.e. 
where
because the astronaut jumps on the earth
and initial velocity 
to find time
, put the given value of
in the given equation, we get

it will take
to reach the ground if he jumps on the Earth
The commutative property of multiplication states that the numbers can be multiplied in any order.
a+b = b+a : Commutative property of addition
a*b = b*a : Commutative property of multiplication
a+0=a : Additive identity property
a*1 =a : Multiplicative identity property
Answer : a*b =b*a
Answer:
Up up up up up up up up up up
9ft n 3 inches , because 12 inches is a feet ! if you know then you know