Hi there! :)
Answer:
r ≤ 2.5
Explanation:
-2(r - 3) + 7 ≥ 8
Distribute the "-2" to the entire parentheses → -2 × r = -2r & -2 × -3 = 6
-2r + 6 + 7 ≥ 8
Add the similar terms together → 6 + 7 = 13
-2r + 13 ≥ 8
Subtract "13" from each side of the inequality → 8 - 13 = -5
-2r ≥ -5
Divide each side of the inequality by "-2" → -5 ÷ -2 = 2.5
r ≤ 2.5 ⇒ Whenever you divide an inequality by a negative number, you must flip the inequality sign!!
There you go! I really hope this helped, if there's anything just let me know! :)