\mohammed had been a science teacher for decades. when he retired, he taught science classes for the general public in the local senior center. this way of adjusting to changes in the lives of the elderly is called

Calculate the iq of a 20 year old who has the mental age of 25

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

Alarge new diamond mine has just opened and the price of diamonds has gone down since she has study economics is cecilia decides to buy diamond necklace and she knows that