An element with mass 140 grams decays by 21.6% per minute. How much of the element is remaining after 20 minutes, to the nearest 10th of a gram?

Denise has a collection of dimes. If q represents the number of dimes Denise has in her collection, choose the expression that describes the amount of money she has in dimes. A) 0.1 + q B) q/0.05 C) 0.1*q D) 0.2 - q

5. The second side of a triangle is 3 more than 2 times the length of the first. The third side is cm long. The perimeter of the triangle is 23 cm. What is the length of the first side of the triangle?

If y = 5/17 when x = 10, find y when x = 5. Show how you got your answer.

Which of the following equations is an example of a line written in slope-intercept form? A. y = mx + b B. x = my + b C. mx = y + b D. mx + by = c

7. If the diameter of a circle is 3.4 inches, then what is the radius?

What are the factors of eight on a six sided die?

All the equations that have same solution as 3x-12=24

What is the slope of a line perpendicular to y=2/3x-2?

Suppose that people's heights (in centimeters) are normally distributed with a mean of 170 and a standard deviation of 5. We find the heights of 50 people.

6:3:3 in its simplest form