As a water quality assurance employee for your local aqua america, inc., branch, you record a drop in water levels from 28 feet to 7 feet at your reservoir. what is the percentage decrease?

Find the value of the cosine for angle a

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?

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start