Keisha starts a savings account to build her trip fund. She deposited $800 at a continuously compounded rate of 4.5%. In 5 years, how much money will she have in her account?

C is the answer

Step-by-step explanation:

We find 6.4

y= 25 being the multiplier   this = $25

25 x 6 = 400 but 6.4 x 25 = 410    they both = 6 whole part canvases, but only 6.3 will ever show 6.4 in the cross checking workings.

Example cross check y = currency to product

Where before we had y = product to find currency.  

If y = 6.4                                this = $6.40

This represents, then there will be 25 canvases and not less if we swapped values.

Reason all multiplication can be rearranged and still show the same answer when multiplied, only division changes to all sets of numbers creates an inverse. That or using the product of 2 sets of numbers after dividing which is exactly what we did.

410/25 = 6.4

410/6.4 = 25

Checks;

25 x 6.4 = 410

6.4 x 25 = 410