Answer:
The measure of the Reference angle is 30vdegrees and the second answer should be Tan(0)=1
Step-by-step explanation:
It is 5 you just have to count
To get a number to decrease by 21% you multiply it by 0.79 (1-0.21)
r = 0.79
7minutes and 30 seconds
28/7=miles mile*30=second runners pace