Answer:
It will take Lainey 10 seconds
10 seconds
Step-by-step explanation:
420 divided by 42 is 10 and its says 42 ft per sec so 10 seconds
acute angle : C
reflex angle : B
right angle : D
obtuse angle : A
A
11/4 hours on the first day
21/4 hours on the second
21-11=10
10/4 hours or 2 2/4
A = 1/2h(x +y)
a=1/2h x+1/2h y
a=h+x+y
x=h+y+a
I'm not absutly sure this is right but i gave it my best effort
Hope This Helps!!!