Each of the following equations is an example of one of the properties of whole-number addition. fill in the black to make a true statement, and identify the property. a. 3+4=_ +3 b. 5+(4+3)=(4+3)+_ c. 8+_ =8 d. 3+(4+5)=(3+_)+5

Janets dinner costs 7.50. if she wants to leave a 10% tip how mich extra should she leave

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters