3x+3(x+y) please help

Match each expression with its simplified form.

Can someone check my answer? you : )

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n