(I have the answers I just need to show the work for b&c help pleasee)

Maribel was approved for a 7-year private student loan at 6.8% to cover her college costs of $10,900.

b. What is the total amount she will pay back? $13,729.80

c. What is the total interest amount? $2,829.80

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 is the measure of angle tvu shown in the diagram below

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?