Lena told her mother that the jeans that she bought were on sale for 10 percent off and she had saved $8.25 on them.

$82.5

Step-by-step explanation:

Step one:

Given that the percent of which is 10% amount to $8.25

We can estimate the of the Jeans as

Step two

Let the cost be x

10 percent of x= 8.25

10/100*x=8.25

0.1x=8.25

Divide both sides by 0.1 to get the value of x

x=8.25/0.1

x=$82.5

The cost of the jeans is

$82.5

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)