On the second day, Penn made $10 + $4 = $<<10+4=14>>14.
On the 3rd day, she made $14 + $4 = $<<14+4=18>>18.
On the 4th day , she made $18 + $4 = $22.
On the 5th day, she made $22 + $4 = $<<22+4=26>>26.
After 5 days, Penn made a total of $10 + $14 + $18 + $22 + $26 = $<<10+14+18+22+26=90>>90.
#### 90