[10 POINTS ❗️] It took Laura 38 minutes to run 8 laps. Write as a rate.

a
\large \frac{38minutes}{8laps}

b
\large \frac{8laps}{38laps}

c
\large \frac{8laps}{38minutes}

d
\large \frac{8minutes}{38minutes}

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

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Consider the first four terms of the sequence below. what is the 8th term of this sequence?