Astore increases the price of a sweater from $20 to $22.what is the percent of increase? select from the drop-down menu to correctly complete the statement.

a 0.1
b 0.2
c 2
d 9
e 10
f 20

The percent increase can be solve by using the formula:

F = P( 1+ i )

Where F is the new prize of the sweater

P was the old prize of the sweater

i is the fraction increase of the price of the sweater

22 = 20(1+ i)

So i = 0.1

So the percent increase is 0.1 x100 = 10 %

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.

good luck on ur quiz test or homework. have a good day : )