Which equation is an example of the commutative property of multiplication?
(4 +21) = (21 + 4)
(4 + 21) (3 - 51) = (3-51)(4 + 21)
(4 + 21(3-5) = (4 + 21(3 - 5)(1)
(4 + 21) = (4 + 2i + 0)

heyyy

step-by-step explanation:

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !