PLEASE HELP!! Determine the number of solutions to each system of equations.
y=0.5x - 2y = -0.5x + 4
One Solution
No Solution
Infinitely Many Solutions
y=0.5x +5, y =0.5x + 1
y=2x+1, y = -4x+1
y = 3x + 2.5, y = 3x +2.5
y=-x-3.y = -x +3
y=-x-2y = -x-2

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Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

Find the missing variable for a parallelogram: a = latex: 28in^2 28 i n 2 h = b = 6.3 in (1in=2.54cm)