sung lee invests $10,000 at age 18 he hopes his investment will be worth $40,000 when he turns 25. if the interest compounds continuously approximately what rate of growth will he need to achieve his goal. round to the nearest tenth of a percent

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )

The answer would be 2 times 3 plus 8 divided by 8 = 7