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16.0

Step-by-step explanation:

15.97

the letter in the hundredths is greater than 5

16.0

16

Step-by-step explanation:

15.97 would round to 16 when rounded to the nearest tenth. This is because the 7 would round up, and add 1 to 9. Anything above 5 is rounded up. For example, if it was instead 15.95, you would still round up and get 16. However, if it was 1,2,3, or 4, this would not be the case. For example, if it was 15.94, you would not round up. Instead, when asked to round to the nearest tenth, you would get 15.9.

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.