30000 the challenges of a few days and regions I don't know if about the youth and what his. can you help me with my question
Answer:
If solving for x then x = -3/2 +y/2
If solving for y then y = -3-2x
Step-by-step explanation:
For x: Divide both sides by 2
For y: Subtract 2x from both sides of the equation
Step-by-step explanation:

in 2nd exp. this is because by using the formula of a2-b2
1.70 - 0.45 = 1.25
1500 ÷ 1.25 = 1200
Gina must sell 1200 cards before she can make a profit