Two red and two blue blocks are placed into a bag. You randomly
take one block out of the bag. If
you replace the block each time,
how many red blocks would
you expect to take out if you try
8 times?

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

What is the value of x when x + 7 = 21?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick