If the measures of three angles of a triangle are represented by (y + 30)°, (4y + 30)°, and (10y – 30)°, then the triangle must be

Do u just plot the numbers on the graph like (1,

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

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?