A 40 gram sample of substance that's used for drug research has a k-value of 0.1455.

Find the substance's half-life, in days.

Round your answer to the nearest tenth.

Hurry A vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. The path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path

Given f (x) = 3x - 1 find f (2)

Sara nick and robin were collecting cans for a recycling project. sara collected 5 times as many cans as robin. nick collected 6 times as many cans as robin. the 3 children collected a total 216 cans. how many cans did they each collect?

3. Solve for x. Round your answer to 2 decimal places 4

Which expression is equivalent to the expression (7*2) ^7

Deanna bought the poster shown below for her wall. Note: Figure not drawn to scale If a = 12 cm, b = 29 cm, c = 15 cm, and d = 19 cm, what is the area of the poster? 459 cm2 409 cm2 490.5 cm2 633 cm2

Solve. A recent advertisement claimed that 2 out of every 5 doctors recommend a certain herbal supplement to increase energy levels.

What is 4 divided by 230

Over a period of five days, the average time of a commuter train trip from one town to the city was 77 minutes. One trip was 71 minutes, another was 74, and two each were 78 minutes. How many minutes long was the fifth trip?

A 4 pound package of peanuts is divided into 1/4 pound packages. How many 1/4 pound packages will there be?