Im in desperate need of help I need help with Just ONE question in math specifically 8th grade pls help.

When y’all answer can y’all explain too !

Write the equation in logarithmic form 8^x=64

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?