How many equal line segments are needed to make a row of 35 squares?

Answer 1

the chain is made with 3 lines per square, plus one ending line
3*35+1

Answer 2

Two red and two blue blocks are placed into a bag. You randomly take two of the blocks out of the bag. List all of the podsible outcomes.

Answer 3

Goodness, you can do this:
RR
RB
BB

Answer 4

Kathy is another alias of Al/Dalt/etc.