Answer:
4.9%
Step-by-step explanation:
GDP is the growth domestic product of a country over a chosen time period
When the GDP growth rate is reported quarterly , you add together the four quarters for the year to find the annual GDP growth rate.
Given the four consecutive quarters as; 2% , 0.9%, 0.8% and 1.2%
Growth rate for the year will be;

4.9% is the annualized growth rate
The answer is C because it fits the formula a+b=c
2+4=6
6y-1.5x=8
multiply both sides of the equation by 10
60y-15x=80
divide both sides
12y-3x=16
use the commutative property to reorder the terms
-3x+12y=16
change the signs on both sides of the equation
your answer will be : 3x-2y=-16
The only non-linear equation from your choices is the area of a circle as it is:
A=πr^2 and if you take the derivative of A you have:
dA/dr=2πr
So the rate of change changes as r changes, it is not constant thus the function has acceleration, so velocity changes.
This is in contrast to any linear equation which is of the form:
y=mx+b now taking the derivative you see that:
dy/dx=m, now m is a constant value, which means that there is no acceleration and the velocity remains constant.