All of them are wrong except for the third one
Answer:
Option A, 
Step-by-step explanation:
Given: Deborah bought a computer for
off the list price.
The list price is
.
To find: The amount Deborah spent on the computer.
Solution: We have,
List price of the computer
.
Deborah bought the computer for
off the list price.
The amount Deborah spent on the computer 
.
So, Deborah spent
on the computer.
Hence, option A is correct.
Answer:
A: 6 triangles with height 10.4 inches each and base 12 inche
B: 62.4 square inches
C: 374.4 square inches
Step-by-step explanation:
Part A: You can form a triangle by connecting E to the top of the segment and connecting the top of the segment to D. Recreating this with each section will create 6 triangles with height 10.4 inches each and base 12 inches.
Part B: The area of a triangle is A = 1/2b*h. Substitute h = 10.4 and b = 12.
A = 1/2*10.4*12 = 62.4
Part C: There are 6 triangles each with area 62.4. So the area of the whole figure will be 6*62.4 = 374.4.
Answer:
Y
Step-by-step explanation: