What is the difference between –4 and 6?

If f(x) = -2x2 - 3 and g(x) = 3x - 4, then f(g(2))=

What are the angle measures in triangle abc? m∠a = 90°,  m∠b = 30°,  m∠c = 60°m∠a = 60°,  m∠b = 90°,  m∠c = 30°m∠a = 90°,  m∠b = 60°,  m∠c = 30°m∠a = 60°,  m∠b = 30°,  m∠c = 90°

Priya mixes 2 1/2 cups of water with 1/3 cup of orange juice concentrate. diego mixed 1 2/3 cups of water with 1/4 cup orange juice concentrate. how much concentrate should each of them mix with 100 cups of water to make juice that tastes the same as their original recipe? explain or show your reasoning.