## Prealgebra (7th Edition)

a. $6(4+5)=6\times4+6\times5$ b. $30(2+3)=30\times2+30\times3$ c. $7(2+8)=7\times2+7\times8$
a. $6(4+5)=6\times4+6\times5$, because multiplication distributes over addition. b. $30(2+3)=30\times2+30\times3$, because multiplication distributes over addition. c. $7(2+8)=7\times2+7\times8$, because multiplication distributes over addition.