The Table Below Shows the Weight for a Calf Raised

Multiple Choice

The table below shows the weight for a calf raised by a local rancher. Use the information to determine the average rate of change in the calf's weight per day. $\begin{array}{l}\text { Calf's Weight }\\\begin{array}{r|c}\text { Day } & \text { Weight (in lbs) } \\\hline 1 & 505 \\5 & 525 \\15 & 575 \\25 & 625 \\40 & 700\end{array}\end{array}$

A) $\frac { 1 } { 5 }$ lb per day
B) $50 \mathrm { lbs }$ per day
C) $500 \mathrm { lbs }$ per day
D) $5 \mathrm { lbs }$ per day