Answer:
x = -3h
x = -12
Step-by-step explanation:
Given equation is 
To find the value of x in terms of h we will solve the expression to isolate x on one side of the equation.
by subtracting 1 from both the sides of the equation,


Multiplying 'h' on both the sides of the equation,

x = -3h
If h = 4,
x = (-3)(4)
x = -12
Answer: a=10
Step-by-step explanation:
Answer: Observational ; does not
Step-by-step explanation: The main distinguishing factor between an experimental study and an observational study lies in the administration of treatment to the participant of the study. In experimental study, some or all the participant in the study are subjected or exposed to a certain treatment and their response to such treatment. ON THE OTHER HAND, Observational study is usually employed when there is a need to gather information on a particular subject matter without directly influencing the participants. In the scenario above, participants were not given any TREATMENT as they were only required to gather information and not to measure the effect of a treatment.
12x=-48 (divide 12 from both sides)
x=-4
10y-13y=30
-3y=30 (divide -3 from both sides)
-10=y
10x+14x=48
24x=48 (divide 24 from both sides)
x=2
Answer:
In my opinion yes!!
Step-by-step explanation: