Given efgh and ∠e=45°, what is the measure of∠ f

This is so hard and it’s for a test

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months