1) work out the numbers missing from these percentages
a. 600 m is % of one kilometre
b. 80 cm is % of one metre
c. 200 ml is % of half a litre

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z