5)joel goes to the nike store and spends $17 on a hat. he also buys a pair of sneakers for
$72 and a tee for $35. given the context, select all statements that are true.
a. in all, joel spent a little less than $130
b. joel spent less than $115 in all
c. joel spent $55 more on a pair of sneakers than a tee
d. joel spent $20 more on a pair of sneakers than the hat and tee combined

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