Arianna needs to order some new supplies for the restaurant where she works. The restaurant needs at least 489 knives. There are currently 249 knives. If each set on sale contains 10 knives, use the drop-down menu below to write an inequality representing as, the number of sets of knives Arianna should buy

Having a hard time understanding this question (see attachment).

Select the correct answer from each drop-down menu the equation of a line is 3/5*+1/3y=1/15

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno step statement reason 1 ∠oln ≅ ∠lno given 2 draw oe as a perpendicular bisector to ln by construction 3 ∠leo ≅ ∠neo transitive property of equality 4 m∠leo = 90° definition of a perpendicular bisector 5 m∠neo = 90° definition of a perpendicular bisector 6 le ≅ en definition of a perpendicular bisector 7 δole ≅ δone side-angle-side (sas) postulate 8 ol ≅ on cpctc nina made two errors in the proof. identify and correct the errors.