At Clovis's Hat Store 40% of the hats are baseball caps. There are 80 baseball caps. How many total hats are there?

You have two cards with a sum of -12 in both hands. a. what two cards could you have? b. you add two more cards to your hand, but the total sum if the cards remains the same, (-12).

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²