Question 8 (1 point) A company laid off 80% of its work force. The number of employees after the layoff is 400. How many employees were
there before the layoff?
15,000
Oь
O
Od
2000
3600
2200
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Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?