Answer:
x^2-49
Step-by-step explanation:
when u multiply the numbers in parenthesis u get 49-7x+7x-x^2 and when u simplify that u get x^2-49
Answer:
-78.424
Step-by-step explanation:
Answer: Tiffany by 1/12 of a mile
Step-by-step explanation:
Find the common denominator and compare both of them