An algebra teacher is ordering new text books for the class. The shipping cost y (in dollars) depends on the number x of books that are ordered, shown in the table. Write a linear model in slope-intercept form for this data. 7 9 13 Number of books (X) Shipping cost (in dollars) (y) 11 43 31 37 49

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

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.

Betty correctly answers 30 questions on your math test there are 40 questions on the test what percent of the questions did she answered incorrectly