It adds up to 360.
35 + 50 + 105 = 190
360 - 190 = 170
The anwser is the first one you put , -4 is below zero
Answer:
Hence the expression 
Step-by-step explanation:
Explanation
- The given expression is (3rs-7)(3rs-4).
- We have to multiply the given expression.
- Multiply the (3rs-7) by -4, multiply the (3rs-7) by 3rs then add like terms.

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Step-by-step explanation:
This is a guess but wouldn't you multiply each side by (0.8)
12(0.8)= 9.6
10(0.8) =8
10(0.8)=8
16(0.8)= 12.8
perimeter= all sides added together
9.6+8+8+12.8= P
P=38.4?