A right cylinder has a radius of 5 and a height of 9. What is its surface area? A. 1407 units2
B. 907 units2
C. 707 units2
D. 4571 units

What is the primary purpose of a game reserve?

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

Why did the people of kamchatka oppose a mining project there