For perimeter you just add the sides up, so 15+12+9 which = 36
Answer:
$55.20
Step-by-step explanation:
Create a proportion where x is the cost of 12 lbs of walnuts:
= 
Cross multiply and solve for x:
0.75x = 41.4
x = 55.2
So, for 12 lbs of walnuts, it will cost $55.20
Answer:
-3
Step-by-step explanation:
-5 = -8 - (- 3)
Answer:
congruency
Step-by-step explanation: