A 45 gram sample of a substance that's used to sterilize surgical equipment has a k-value of 0.1483.
Find the substance's half-life, in days. Round your answer to the nearest tenth.

except a rational number. : )

y do u put "subscirbe to ence" on a app for ppl who need with their work?

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer