## Prealgebra (7th Edition)

a. $\frac{7}{7}$ because $7*1= 7$ b. 5 because $5*1 = 5$ c. 11 because $1*11=11$ d. 4 because $4*1=4$ e. 10 because $10*1=10$ f. 21 because $21*1=21$