Keith purchase a prepaid prepaid phone card for $20 cost cost $0.07 a minute using this car the credit scenes are left on the card after it has used minutes of calls again by the following C equals 20.00 - 0.07 X how much credit is left on the card after keep using it for 40 minutes of calls

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Solve for x -3+3b> 9a: ) x> 4b-9/3b: ) x< 9-4b/3c: ) x< -4b+9/-3d: ) x> 4b+9/-3

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take