Answer:

Step-by-step explanation:
The given polynomials are,

In polynomial addition and subtraction only like terms can be added or subtracted.
So,




She Will spend $483 on a bag and 3 dresses.
divide 276 by 4 which equals 69 and give you the price per dress. now multiply that by 3 and add the bag amount for your answer.
-3/4 or it could also be -0.75
Answer:
21
Step-by-step explanation:
average 9 pounds per three weeks
divide 9 in 3 three weeks
3 pounds per week
7 times 3 is 21