Identify which equations have one solution, infinitely many solutions, or no solution. PLEASE HELP! I will rate the answers! 2.2z+3z=4.5-3.2
2.3y+3.2-y=2.1+1.3y+1.1
2/3x+2/3+1/5x=2/3x
20+4r=32-2r

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase