How much of a radioactive substance must be presented to decay to 40 grams in 9 years if the half-life of the substance is 4.6 years?
Between 140 and 145 grams
Between 145 and 155 grams
Between 155 and 165 grams
Over 165 grams

4.6875 pounds

step-by-step explanation:

answer: 414,377,008

step-by-step explanation:

just multiply it

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b