Practice:
1. find the value of each variable and the measure of each labeled angle.
a)
(27) xax - 42
(5x)
(& x - 75)

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:

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.