A group of rangers work 5 days per week. it takes them 4 days to plant trees on 1/2 acre. what is the unit rate per week

Unit rate per week = .625 acre

Step-by-step explanation:

4 days- 1/2 (.50) acre

2 days- 1/4 (.25) acre

1 day- .125 acre

.125 • 5 (for the five days they work) = .625 acre

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

$649.60

step-by-step explanation: