Answer:
667.30
Step-by-step explanation:
Well we can right this equation as 800(.985)^x it's an exponential function then we substitute x for 12 and get 667.30
the correct answer is j=12+7
14
First one is wrong. x should be 16.
Second one is not completely visible, so cannot say.
In the last step, the divison by 4 yields:
x/16 = 1, so x = 16
