If i take 7/8 teaspoon of medicine every day how much medicine will i have taken in a week

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

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 !