Luisa's Pet Store pays $7.63 for a case of gourmet cat food. The store's customers pay $19.49 per case for this cat food. What is the markup on a case of gourmet cat food?
A
$11.39
00
$11.86
С
$12.14
D
$12.86

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.

Which expression is the factorization of x^2+10+21

How are algebraic expressions evaluated using substitution?