How much of a 0.230 g radioactive sample with a half-life of 8 hours would remain after a period of 2.50 days?

With my drivers ed in the decision-making cycle, to decide means to a. carry out an action that has been decided b. estimate if an identified hazard will affect the driver c. pick a course of action d. pick a scanning routine

The biome pictured above is found in areas such as kenya and south africa. the land is grass-covered with very few trees and gazelles and other grazers are common here. why does this biome have a low population of trees? a) large grazing animals destroy the trees. b) it is a deforested rainforest with poor soil. c) it has high temperatures and low precipitation. d) it has a long rainy season followed by flooding.

Asafe and responsible driver must have a. a positive attitude towards driving b. a friend in the car to navigate c. a gps system d. the ability to drive aggressively