Answer:
3dollars
Step-by-step explanation:
easy
2 green spaces, 2 star spaces, 2 question mark spaces
I'm not sure how to write the rule, but every time you add one more to the sum of the last two. First, you add 1, then 2, then 3. 1+1=2 2+2=4 4+3=7 7+4=11 and so on. I hope this helps!
Length = 20 ft
If he uses 60 ft of fencing to line his rectangular backyard, then the perimeter is 60 ft.
Perimeter formula is ((Width × 2) + (Length × 2))
10 × 2 = 20
20 × 2 = 40
40 + 20 = 60
We have to use Pythagorean theorem that says :

The missing length of the triangle is : 36 feet