Look at the function below. f(x)=5*2^x which of the choices correctly describe x? 1.an element of the domain 2.an element of the range 3.an input value 4.an output value a. only iii b. i and iii c. only i d. i and iv

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?