Provide a picture or answer choices and I can answer the question of
3.because I found it. hahaha
Answer:
4.11
Step-by-step explanation:
7(p-9)=-34.3
first you want to apply what is outside of the parenthesis to the inside of the parenthesis. After applying you would get
7p-63=34.3
Next you wanna get the variable to one side and the whole numbers to the other side. to do this you add 63 to each side, you end up with
7p=28.8. Then you want to get p by itself. In order for this to happen you divide each side by 7 to get p=4.114285714
180 times 4/100= 7.20- Sales tax
180+7.20= $187.20 is the total cost
Please mark brainliest and give a thanks...
To find your answer you would divide 21 by 3 which would be 7, once you've got 7 you would multiply it by 9 which would give you the amount of old houses that there is which would be 63.
