The pythagorean theorem can be used to find a missing side length of which of the following?

isosceles triangle
right triangle
equilateral triangle
acute triangle

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?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?