Answer:
4.12
Step-by-step explanation:
A^2+b^2=c^2 so 8^2+b^2=9^2 so 64+b^2=81 so b^2=17 so b=4.12
34+34=68 or l
12 + 12 = 24 or w
68 +24 = Perimeter
That's a pretty confusing one. I think it's 10 minutes.
7(a - 10) = 13 - 2(2a + 3)
7a - 70 = 13 - 4a - 6 = 7 - 4a
7a + 4a = 7 + 70
11a = 77
a = 77/11 = 7
a = 7.
Eighty five million, one hundred nine thousand, one hundred seventy-eight.
