4) Tami braids hair for $120 per customer. PLEASEEE HELPPP

4)Tami braids hair for $120 per customer. Customers do not have to purchase the
braiding hair. Tami invests $480 in the
braiding hair for her customers. Write an
equation to determine the number of
customers' hair Tami must braid in order
to break even.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Which statement is true about the discontinuities of the function f(x) = x-5/ 3x^2-17x-28

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.