20 easy points! Suppose a college bookstore buys a textbook from a publishing company and then marks up the price they paid for the book
25
%
and sells it to a student at the marked-up price. If the student pays
$
100
for the textbook, what did the bookstore pay for it? Round your answer to the nearest cent.

70

step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

answer: a.12cm

step-by-step explanation:

we would need a picture of the quadrilateral in order to answer the question. also, it seems that the question is missing some components.