3. How many square meters are enclosed in
the track?

For the rectangular shape we have:

And the total area would be:

Replacing we got:

Step-by-step explanation:

For this case using the figure attached we can separate the total area in 3 parts.

For this case and represent the area for a semicircle and the A2 represent the area for a rectangular figure.

We can find the individual areas like this:

For the rectangular shape we have:

And the total area would be:

Replacing we got:

ab will be equal to

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3