D n J = {7,8} (intersection)
Values that satisfy both sets.
D u J = {-1,1,4,5,7,8} (union)
All values present in both sets.
Answer:

Step-by-step explanation: 3p -3 =8p + 5 3 +5 =8p -3p 8=5p 
Answer:
already answered
Step-by-step explanation:
Answer:
B. 152 cm²
Step-by-step explanation:
To find the surface area using a net, do this:
Take apart the figure. We see that there are three rectangles and two triangles. Find the area of each (
) and then add the values together:
The first rectangle on the left is the same as the one on the right.

Two measures are 40 cm².
The middle rectangle is:

48 cm²
The formula for the area of a triangle is
:

The area of the two triangles is 12 cm².
Now add the values:

The area of the figure is 152 cm².
:Done