Answer:
Step-by-step explanation:
sales tax on the shirt= 20(0.09)=1.8 dollars
total cost with sales tax =20+20(0.09)=21.8$
Answer:

Step-by-step explanation:


Answer:
ok so umm i dont get what ur looking for?
Step-by-step explanation:
To find the answer you simply find the square root of -169 which is 13 so x=13