On a coordinate plane how far is 6,6 and 6,-4

Ihave trouble finding the nth term of a linear sequence

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.