Answer:

Step-by-step explanation:
Let
represent the length of the rectangle. The width can be represented as
.
The perimeter of a rectangle with lengths
and
is given by
.
Thus, we have:

The width is then
.
Answer:
should be 30
Step-by-step explanation:
triangles have 180°
if x is 30
2x is 60
the other angle is 90
add those all together and you get 180°
Answer:
1. number of data values
2. sum of data values
Step-by-step explanation: