hey, i haven't been for quite a while

1. If you invest $100 at 2% per day, compounding daily, the amount of money you would have after x days is given by y=100(1.02)^x. For how many days would you have to invest to double your money.

2. How would you go about sketching 2* 10^(x/10)+4?

3. y=2^x, y=3^x and y= 5^x

i. For what of value of x is 2^x > 3^x > 5^x

ii. For what value of x is 2^x < 3^x < 5^x

iii. For what value of x is 2^x = 3^x = 5^x

Thanks