7v(4v2-8v+1)+8(4v2-8v+1)
28v3-56v2+7v+32v2-64v+8
Answer= 28v3 -24v2 -57v +8
Answer:
75
210
Step-by-step explanation:
75/210
use calculator
Ok so there's 5 sides
let's find interior angle sum
formula is S=180(n-2)
n in this case is 5 since there are 5 sides
S=180(5-2)
S=180(3)
S=540
so now add the 5 angle lengths up to 540
5x+2+10x-3+7x-11+13x-31+8x-19=540
43x+-62=540
+62 +62
43x=602
divide both sides by 43
x=14!!!!!
He is left with 12
1/5 of 10 is 2 so he was left with 8
2*2 is 4, and 8+4 is 12!
Hope this helps and have a great day!
