Estimate how many times larger 6.1x10^7 is than 2.1x10^-4

2.9 x 10¹¹ ≈ 300,000,000,000 times larger

Step-by-step explanation:

6.1x10⁷ / 2.1x10⁻⁴ = 2.9 x 10¹¹ ≈ 300,000,000,000

300,000,000,000

Step-by-step explanation:

6.1 x 10^7 = 61,000,000

2.1 x 10^-4 = 0.00021

= 2.9 x 10^11 = 290,000,000,000

rounding would be 300,000,000,000

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.