Isaac draws a regular octagon and rotates it about its center. which angle measures can isaac rotate the regular octagon through to map it onto itself? select each correct answer. 30° 45° 90° 120° 135° 180°

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )