Marcie solved the following inequality and her work is shown below: . −2(x − 5) − 12 ≤ 4 + 6(x + 3). −2x + 10 − 12 ≤ 4 + 6x + 18. −2x − 2 ≤ 6x + 22. −8x ≤ 24. x ≤ −3. what mistake did marcie make in solving the inequality?

All steps that Marcie did are right, but she forgot to change sign in last step.

Consider the inequality

Then

Group the numbers:

Separate terms with x and without x in different sides:

The coefficient at x is -8 and it is negative, then dividing the inequality by -8 you have to change sign in opposite:

Marcie forgot to change sign in last step.

you meant circumference well the answer is:

17.27876 miles

area is 23.7583

the radius is 2.75 miles

hope this hmu if needed.