#### Answer

a. $6(4+5)=6\times4+6\times5$
b. $30(2+3)=30\times2+30\times3$
c. $7(2+8)=7\times2+7\times8$

#### Work Step by Step

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.