Help please suushdhehrhehr

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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?