Answer:
The area of the piece of construction paper is 
Step-by-step explanation:
Length of construction paper =
=
Width of construction paper = 
= 
Area of construction paper =
Area of construction paper = 
= 
Hence the area of the piece of construction paper is 
Dg stands for "differential geometry"
hope this helps
$15 more, than twice Friday's earnings
d is how much he earned on Friday
s is how much he earned on Saturday
2d + 15 = s
Question 3 is 48
Question 4 is 45