21. The table below shows the average price of a personal computer during certain years. year
price
1997
$1,950
1999
$1,719
2003
$1,420
2007
$1,175
2010
$949
2012
$725
a)
a) Write an equation to model the data using linear regression.
b)
b) Use the equation to predict the average cost of a
personal computer in 2020.
Gina Wilson (All Things Algebra)

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

loloo

step-by-step explanation:

lololool

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract