Acylindrical oil tank 8 ft deep holds 620 gallons when filled to capacity. how many gallons remain in the tank when the depth of oil is 3 and one half ft.

  271.25 gal

Step-by-step explanation:

Assuming the tank is oriented so that the quantity of oil is proportional to depth, the amount remaining is ...

  (3 1/2 ft)/(8 ft) × (620 gal) = 271 1/4 gal

2.56 is the width of the garden

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