Answer:
Step-by-step explanation:
How to find speed-
Use formula s= d/t
dist.= 50 m
t=2.25 hrs
S=22.2
(I used calculator u can too)
36 because the rest are prime #'8
Answer:
or 
Step-by-step explanation:
Remember that
1 hour=3,600 seconds
so
by using proportion

Convert to meters

☺ I might have misunderstood, but I can help if you give me the question. ☺
Answer:
x=40
Step-by-step explanation:
Angle Formed by Two Secants= 1/2(DIFFERENCE of Intercepted Arcs)
x = 1/2(120-40)
x = 1/2(80)
x = 40