Help what goes where? correct answer only pls :)

2(3 + w) = 6 + 2w

2(1 + w) = 2 + 2w

3(2 + w) = 6 + 3w

6(1 + w) = 6 + 6w

Step-by-step explanation:

2 x 3 = 6 and 2 x w = 2w: Therefore your answer is 6 + 2w

2 x 1 = 2 and 2 x w = 2w: Therefore your answer is 2 + 2w

3 x 2 = 6 and 3 x w = 3w: Therefore your answer is 6 + 3w

6 x 1 = 6 and 6 x w = 6w: Therefore your answer is 6 + 6w

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

i think it would be 42cm