Iris wants to buy two necklaces one for her sister and one for herself the necklace for her sister costs $42.00 and the necklace for herself cost $28.00 the sales tax on the purchases is 8% find the total cost of irisis purchases including sales tax if nesecary round your answer to the nearest cent

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio