A running track in the shape of an oval is shown. The ends of the tracks form semicircles. What is the perimeter of the inside, of the track?

The sum of two numbers is 86, and their difference is 20. find the two numbers

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

Plzzz answer both questions and i will give you 100 points