Please need help ASAP

A. 810

Step-by-step explanation:

All you need to do here is add the number of children between ages 0-10 and children of ages between 10-20.

500+310= 810

Hope this helps! :)

810 people are under the age of 20 are in Disney World

Step-by-step explanation:

Find the bars of the graph that are before the graph that indicates the age 20.

There are two bars, one with the ages between 0-10 another with the ages 10-20.

Add the results of both graphs.

810

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.