Neda sells televisions. She earns a fixed amount for each television and an additional$15 if the buyer gets an extended warranty. If Neda sells 12 televisions with extended warranties, She earns $780 . How much is the fixed amount earns for each television?

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.