What is this answer ? It has 5 parts !

Question

A painting sold for ​$287 in 1977 and was sold again in 1987 for $451. Assume that the growth in the value V of the​ collector's item was exponential.

​a) Find the value k of the exponential growth rate. Assume

Vo=287

k = ?

​(Round to the nearest​ thousandth.)

Answer 1

451 =287(e)^10k

451/287 = e^10k

ln(451/287) = 10k

k = ln(451/287)/10

= ln(1.5714)/10

= about 0.45199/10

= 0.045199 = 4.5199% annual growth rate

= 4.520% rounded off to 3 decimal places