The cost of the T-shirt is the difference between the total cost and the cost of the sweatshirt.

The T-shirt cost C. $21.10.
Answer:x.
Step-by-step explanation:
Answer: 11.4
Step-by-step explanation:
change to numbers 
simplify 
Answer:67
Step-by-step explanation: cause tghe number is not a number
Answer:
The correct option (c) "is held together by ionic bonds".
Step-by-step explanation:
Table salt is NaCl. It is a combination of Sodium and Chlorine.
There is 1 valance electron in sodium. Its electronic configuration is 2,8,1
The electronic configuration of Chlorine is 2,8,7. It means that it needs 1 electron so that its octet gets completed.
Na transfers one electron to Cl. It becomes Na⁺. Cl gains one electron From Na. It becomes Cl⁻.
As a resuslt, Na⁺ and Cl⁻ forms. Both Na and Cl are ions. They held together by ionic bonds.