22. It is a letter used to represent a value that can change.
A. constant
C. variable
B. numerical expression
D. algebraic expression

23. Express this statement into algebraic equation. "Twice Albert's age increased by 5 is 17".
A. 2y + 5 = 17
C. 2m-5 = 17
D. 2n (5-17)
B. 17 = 2 + 5y

24. What speed covers 540 kilometers in 6 hours?
A. 80 kph
B. 70 kph C.90 kph
D. 60 kph

25. At 90 kph, how far do you travel in 3 hours?
A. 270 kilometers
B. 180 kilometers
C. 90 kilometers
D. 300 kilometers

26. At 45 km/h, how long does it take to travel 180 kilometers?
B. 4 hours
A. 3 hours
D. 6 hours
C. 5 hours ​