After 6 days, the mass m, in grams, of 100 grams of a certain radioactive
element is given by the function
m(t) = 100(0.97). To the nearest percent,
what is the weekly decay rate of the
element?
A 3%
C 21%
B 19%
D 81%

123445

Step-by-step explanation:

125123254125

3%

Step-by-step explanation:

Sorry I have no step by step explanation at this time.

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