Which of the following uses a variable to represent a person, place, or thing that is unknown

Linear Programming: The polar sports company both manufactures snowboards and skis. it takes 8 hours to manufacture a snowboard and 10 hours to manufacture a set of skis, there are 400 hours of labor available each week for production.

If we express $2x^2 + 6x + 11$ in the form $a (x - h) ^2 + k$, then what is $h$? (ignore the $)

A sales tax of 7% was added to the $36.00 price of jacket. What was the total cost of the jacket

7. What is the multiplicative inverse of 1/4? 1/8

Wanda took out a personal loan for 16,000 at 19% simple interst

2 divided by 7 long division

If f (x) = 2x^2 - 4x and g (x) = 5 - 2x, evaluate f (x) - g (x) for x = 5

While shopping, lucinda spent $48. if the amount she spent was %15 of her savings, how much savings did she have before she shopped

What is - 2+-2= Is it 4 yes or no

Zoe says that a box that is 1 unit wide, 2 units long, and 3 units tall has a greater volume than a box that is 2 units wide, 3 units long, and 1 unit tall. Is she correct?