Jeremy and caitlin collect baseball cards. the ratio of jeremy’s cards and caitlin’s cards was 9 to 3. after jeremy gave 12 carss to caitlin, they had an equal number of cards. how many cards did caitlin and jeremy have at first? explain.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.