a ladder 7.5 m long leans against a vertical wall 6 m high how far away from the foot of the wall to the foot of the ladder​

yes. we do proportions in probabilities.

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

there still no table

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 !