Answer:
30
Step-by-step explanation:
538 = 540
509 = 510
40 - 10 = 30
Answer:
A: 2/3
Step-by-step explanation:
Answer:D) SAS
Step-by-step explanation:
USA test prep
Answer:
(a) 
Step-by-step explanation:
Given


Required
Determine the time in each lap
The unit time in each lap is calculated by dividing the total time by the number of laps; i.e.;

Substitute values for Time and Lap
