A 9 gram sample of a substance that's used for drug research has a K value of 0.1459

Find the substances half-life in days, and round answer to the nearest ten. (exponential decay)

1) Which of the following does not show the Commutative Property of Addition? A. 3x + 4y = 4y + 3x B. a + b = b + a C. ab = ba D. 3 + x = x + 3

What is the solution to the equation One-fourth x minus one-eighth = Start Fraction 7 Over 8 End Fraction + one-half x? x = negative 5 x = negative 4 x = 4 x = 5.

Graph the inequality. 4x + 6y 10

Which expression is not equivalent to the other expressions? -6 (2 x-4) -4 (3 x + 6) - (12 x - 6) + 18 0-314x-3) = 15

What is the interest amount after borrowing $83,500 at a rate of 4.005% over 6 years? Round your answer to the nearest cent.

Solve this equation by factoring b^2+5b-35=3b (b^2 means b to the second power)

If a spider can move 4/5 of a mile every hour how many hours would it take for the spider to go 4 miles

Divide x³+x²+x+1 by x+1

Officer Brimberry wrote 32 tickets for traffic violations last week, but only 4 tickets this week. What is the percent decrease? Give your answer to the nearest tenth of a percent.

Write 0.65 as a fraction