Plutonium-240 decays according to the function where Q represents the quantity remaining after t years and k is the decay constant, 0.00011 ... How long will it take 24 grams of plutonium-240 to decay to 20 grams?

Arielle wants to make a circular garden. She has enough fencing for a garden circumference of 15 feet. There is a 7-foot gap between her house and the shed where she would like to put the garden.

What is the absolute value of the number indicated on the number line below? -12 - 11 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 A. -9 B. 8 C. -8 D. 9

4 (w+8) - 7w = 38 Solve for w

Explain how to use mental math to add 37+33

Drove 360 miles which is 136 miles less than twice the distance Matt drove. Write an equation showing how many miles, d, Matt drove.

What is the parcial product of 42 * 28.

Draw a rectangle that has a perimter of 20 units and an area of 25 square units

Sofia has a plate that has 4 sides of equal length 2 Paris of opposite sides that are parallel and no right angles. What quadrilateral best describes the plate

1. Write an equation of an ellipse in standard form with the center at the origin and with the given characteristics. vertex at (-3,0) and co-vertex at (0,2) A) x^2/9 + y^2/4 = 1 B) x^2/4 + y^2/9 = 1 C) x^2/3 + y^2/2 = 1 D) x^2/2 + y^2/3 = 1 2.

An RV leaving Canada is stopped at customs at the border and weighed. The scale shows a reading of 2.5 tons. What is the weight of the RV in tonnes?