In one year, a dog's weight increased from 64 pounds to 80 pounds. By what
percentage did the dog's weight increase?

16 because 64 plus 16 is 80 hope this helps :)

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.