Ihave no idea how to solve these problems.. is anybody know how to solve these? plz

How many days was the temperature above 90 degrees?

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

What is the relationship between all triangles that can be drawn given the same three angles