The lower quartile of a set of data is calculated by . A.
averaging the lower half of the data set
B.
finding the median of the lower half of the data set
C.
finding the mean of the data set remaining after removing the lower half
D.
subtracting the smallest value of the lower half of the data set from the biggest value of the lowest half of the data set

The lower quartile is the median of the lower half of a data set.

The answer would be B.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions