The Scholastic Aptitude Test (SAT) scores in mathematics at a certain high school are normally distributed, with a mean of 550 and a standard deviation of 100. What is the probability that an individual chosen at random has the following scores

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.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.