10 POINTS EACH PERSON Which of the following ordered pairs could be placed in the table below and still have the relation qualify as a linear function?

Input
(x) Output
(y)
−5 7
−3 15
−1 23
? ?
(0, 31)
(−7, 30)
(1, 31)
(0, −1)

With finding limits of multi variable !

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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