Answer:
1760
Step-by-step explanation:
12 inches in a foot so 5280x12 is how much inches in a mile
63360 inches in a mile
63360 divided by 36 inches
1760
One way:
3x + 4x + 5 x = 30
12 x = 30
Divide by 12
x = 2.5
3x = 7.5 (2.5x3)
4x = 10 (2.5x4)
5x = 12.5 (2.5x5)
7.5cm + 10cm +12.5cm = 30cm There are your three sides.
The picture isn't loading so i'll answer based on what is shown.
If x-4=-2, then x is 2.
What function you haven't even provided the formula
On expanded form is for example 139 in expanded form would be (100)+(30)+(9)and area model is the model for multiplication