Answer:
(a)
• 1st Restaurant: 4+10x
,
• 2nd Restaurant: 12x
(b)4+10x=12x
Explanation:
(a)The first restaurant charges a delivery fee of $4 for the entire purchase and $10 per pizza.
![\text{ Total charge from the first restaurant}=4+10x](https://img.qammunity.org/2023/formulas/mathematics/college/jb1osklo84of3vekstdnbp1crlmoemdkmo.png)
The second restaurant has no delivery fee and charges $12 per pizza.
![\text{ Total charge from the second restaurant}=12x](https://img.qammunity.org/2023/formulas/mathematics/college/81rxbonn6fgpe7262cvoxkf5u0iifmnoy1.png)
(b)The equation showing when the charges are the same is:
![4+10x=12x](https://img.qammunity.org/2023/formulas/mathematics/college/4q8jplhha5h8c9219qllm3i3ujr72ujy5j.png)