What is the property of 7/9x1=7/9

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?