21 factors: 1,3,7,21
56 factors: 1,2,4,7,8,14,28,56
7 is your GCF
41. A. 30
42. 148 because supplementary angles equal 180
Answer:

Step-by-step explanation:
Given that,
Length of a rectangle, 
Width of a rectangle, 
We need to find the area of the rectangle.
We know that,
Area of a rectangle = l × b
Substituting all the values,

Hence, the area of the rectangle is
.
Answer:
3rfwf
Step-by-step explanation:
a,c e