Which situation is most likely to have a constant rate of change?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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 is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i