Starla bought cloth napkins at an outlet store for $3.50 each, and she also used a $15 off coupon. in the equation below, x represents the number of napkins, and y represents the cost before tax. y = $3.50x - $15 if starla paid $55.00 before tax, how many napkins did she buy? a. 20 b. 2 c. 16 d. 21

How do i i solve this equation? -18 = x/3 + 3

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.

Which expression represent a number that is one fourth as great as 10-2a. (10-2)+4b. (10-2)÷4c. (10-2)-4d. (10-2)×4