What is the solution to this equation?

Can you draw an isosceles triangle with only one 80 degree angle?

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper