Help me ASAP 20 points!

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

What expression is equivalent to log3(x+4)

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*