What type of arithmetic property is
illustrated; a(b + c) = ab + ac?

Distrubutive property

Step-by-step explanation:

Associative: a(bc) = (ab)c

Commutative: a+b=b+a and ab=ba

Distibutive: a(b+c)=ab+ac

Distributive matches the discription.  

plan a has a monthly payment of about $23 less and a total interest charge of $120 less than plan b.  

plan a has a monthly payment of about $23 less and a total interest charge of $120 more than plan b.    

plan a has a monthly payment of about $23 more and a total interest charge of $120 more than plan b.  

plan a has a monthly payment of about $23 more and a total interest charge of $120 less than plan b.

those are the answer choices. the formula is m= p+prt/12t. the final question is what statement compares the plans?