Identifying the values a, b, and c is the first step in using the Quadratic Formula to find solution(s) to a quadratic equation. What are the values a, b, and c in the following quadratic equation?

18 = −9x + 7x2.
A: a = 18, b = 9, c = −7
B: a = 18, b = −9, c = 7
C: a = 7, b = 9, c = 18
D: a = −7, b = 9, c = 18

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

∠cbe and ∠deb are same-side interior angles.

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step-by-step explanation: