Answer:
all answers are shown and pictured
Answer:
12
Step-by-step explanation:
Answer:
divide perimeter by 3
Step-by-step explanation:
all 3 sides of an equilateral triange are equal, so you can divide the perimeter by 3 to get the length of one side
.1 repeating - decimal
11% - percentage
-2-3x=3+1x
-2-3=1x+3x
-5=4x
x=-1.25
