Hi,
@josuemv @alexarosario
1. Go to wp-admin->LMS settings->Course Settings->Remove the price and click on save.
Please refer to this Screenshot :
http://prntscr.com/fe6rfi
It will remove the price from the Course Widget on the Course Page.
2. This css will the the course prices in the course directory.
.directory.course .item-credits span.woocommerce-Price-amount.amount {display:none !Important;}
3.This css will hide the Course Price from the Course Blocks.
.block_content .course_price {display:none !important;}
Go to wp-admin->appearance->customiser->add custom CSS-> add these lines and save.