Can someone help me with that question please and thank u :)

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?

What dimensions can créate more than one triangle ?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle