In order from left to right:
D, C, A, B
Answer:
they all describe one of the 3
Step-by-step explanation:
#1 is a survey
#2 is an observational study
#3 is an experiment
(3.6x - 1.9)4 = 28.4
3.6x - 1.9 = 7.1
3.6x = 7.1 + 1.9
3.6x = 9
x = 9 / 3.6
x = 2.5 (value of x)
3.6(2.5) - 1.9 = 7.1 (side length)
you want to multiply it by 4 because right now its only showing one side. perimeter is all 4 sides combined
Pineapples probably make me a second