Marcy concludes that the following system of equations has one solution. y = 3x + 6y = -2x + 10Which characteristic of the equations did she use to reach this conclusion? A. They have different slopes.
B. They have the same two variables.
C. They have y on the same side of the equation.
D. They have the same slope, but different y-intercepts.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation:

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.