How can (a+3)2=a2+6a+9 be derived from the polynomial identity (a−3)2=a2−6a+9? A. Add 12a to both sides of (a−3)2=a2−6a+9.
B. Add 6 to both sides of (a−3)2=a2−6a+9.
C. Multiply both sides of (a−3)2=a2−6a+9 by −1.
D. Substitute −a for a on both sides of (a−3)2=a2−6a+9.

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning