Researchers recorded that a certain bacteria population declined from 380,000 to 600 in 42 hours. At this rate of decay, how many bacteria will there be in 19 hours? Round to the nearest whole number.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

use formula for the circle a=3.14

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

i dont know men

step-by-step explanation: