Answer: Structured Observation
Step-by-step explanation:
The observation is so named because, the problem has be defined and the behavioural pattern has to be measured, and the method of observation is also known to the participant who weekly turn in their statistics.
R - 18 = 50
r = 50 + 18 = 68
Hence Rick is 68 yrs old
Answer:
Perimeter of square Q is 49 inches.
Step-by-step explanation:
Let x be the length of side of square P and y be that of square Q.
It is given in the question that :

Also it is given that x=3.5 inches.Hence

∴ y=12.25 inches.
Perimeter of square Q is 4y =
inches.
Answer:
C
Step-by-step explanation:
Because the minus makes the difference between the 2 numbers
Answer:
x > -1
Step-by-step explanation:
Add 9 to both sides so as to isolate x: -10 + 9 < x - 9 + 9, or -1 < x, or x > -1.