Answer:
55 minutes
Step-by-step explanation:
Use a proportion.
x = the number of minutes.

Answer:
π
Step-by-step explanation:
The standard form of the sine function is
y = a sin(bx + c)
where a is the amplitude, period =
and
phase shift = - 
here b =
, c = - 
phase shift = - 
=
× 2 = π
The mode is the number that appears most frequent within a given sequence.
To start us off, let's make a list of the numbers and how many there are.
0 : 1
1 : 2
2 : 1
12 : 1
13 : 1
21 : 1
22 : 1
31 : 2.
Now let's see which number(s) appears the most.
1 and 31 appear the most, so 1 and 31 are our mode.
Your answer is :
C.) 1 & 31.
I hope this helps!