If each collectible coin weighs 2.5 grams, how much do 3 collectible coins weigh all together? A) 9.5 grams
B) 8.5 grams
7.5 grams
D 6.5 grams

What is the range of the data below? .8090100

Anyone know? will mark brainliest if you're correct!

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?