Let's solve your inequality step-by-step.
s−3≥5−4
Step 1: Simplify both sides of the inequality.
s−3≥1
Step 2: Add 3 to both sides.
s−3+3≥1+3
s≥4
Step 3: Multiply both sides by 3/4.
(
)*(
s)≥(
)*(4)
Answer: s≥3
No.
Replace the x's with -5 and you get -25=-27 which is not a solution
1209 I pick that number because it had no repeated digits
5 + 12 + 3 + 4 + 3 = $27
Multiply $27 by five because he bought five of those lunches, and that equals a total of $135. That's an expensive lunch! :)