What kind of toy are used to build 3 dimensionality models

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Proving the congruent supplements theorem

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2