a straight horizontal line is 180 degrees
box in the middle means that angle is 90 degrees
(s+1) + 90 + (2s-1) = 180
3s + 90 = 180
s = 30
Answer: 20 minutes
Step-by-step explanation: i don’t feel like explaining
It would be: 4 2/7 * 2 1/5
= 30/7 * 11/5
= 330/35
= 66/7
In short, Your Answer would be 66/7 or 9 3/7
Hope this helps!