Abc electronics sells an 8 pack of aa batteries for $4.80. better batteries sells a pack of 15 aa batteries for $10.20. which store has the better deal? what is the difference in cost per battery? show or explain your answer.

we are given two cases

ABC Electronics:

total number of AA pack of batteries = 8

total cost price =$4.80

cost per battery = (total cost price)/(total number of AA pack of batteries)

cost per battery =

Better Batteries:

total number of AA pack of batteries = 15

total cost price =$10.20

cost per battery = (total cost price)/(total number of AA pack of batteries)

cost per battery =

We always look for lesser cost

so, ABC Electronics deal is better

Difference in cost per battery =0.68-0.60

Difference in cost per battery =$0.08..........Answer

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