Answer:
this is the graph and answer :D
Step-by-step explanation:
Answer:
9in
Step-by-step explanation:
54 = 1/2(12*x)
54 = 6*x
x = 9
Check
12 x 9 = 108
108/2 = 54
Answer:

Step-by-step explanation:
First Rectangle:

Second Rectangle:


Answer:
260 assignments in a school year
Step by Step:
There are 180 days in a school year and you do 3 assignments per day you multiple 180 and 3