Hm

Step-by-step explanation:

Two fractions are said to be proportional to each when there exists a number such that

So k must be the same for both equations.

Let's analyze the 4 pairs of fractions:

1)

We have:

k is the same, so these two  fractions are proportional.

2)

We have:

k is NOT the same, so these two fractions are NOT proportional.

3)

We have:

k is NOT the same, so these two fractions are NOT proportional.

4)

We have:

k is NOT the same, so these two fractions are NOT proportional.

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

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .