Answer:
Answer is C. 3s + 9
Step-by-step explanation:
The perimeter is the sum of all 3 sides in a triangle
which is s+3 + s+3 + s+3
= 3s + 9
Your answer is 3 because negative 1 plus negative three is negative four, and negative four plus seven is 3.
Answer:
25.45 per lesson
Step-by-step explanation:
divide $305.40 by 12