Bruce and mila are collecting baseball cards from their favorite teams, the orioles and the pirates. the equation r+p=28 represents the number of cards bruce has. the equation 2r+p=43 represents the number of cards mila has.

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

If chord ab is congruent to chord cd, then what must be true about ef and eg?