A researcher measures 200 counts per minute coming from a radioactive source at noon. At 3:00pm, she finds that this has dropped to 25 counts per minute. What percentage of the original source will remain at 6:00pm?

A negative slope increases as the line moves left to write?

a rectangular poster is three times as long as it is wide. a rectangular banner is 5 times as long as it is wide. both the banner and the poster have perimeters of 24 inches. what are the lengths and widths of the poster and the banner?

Nancy has $4,111 in an account that pays 3.07% interest compounded monthly. What is her ending balance after two years? M 17 .

The lines y=-3x+4 and y=-3x-17 are perpendicular.

What is the value of the underlined digit in 768,236 underlined digit (2) A. 2 x 10 1 B. 2 x 10 2 C. 2 x 10 3 D. 2 x 10 4

What will the total value of an investment of $5000 be if it has an interest rate of 7% and is invested for 4 years

What is the mean of the data set? {11, 14, 15, 16, 16, 18, 20, 20, 22, 22} A. 11 B. 15.6 C. 17.4 D. 18

Jordan is cutting a 2 meter by 1 1/4 meter piece of rectangular paper into two pieces along its diagonal. what is the area of each of the pieces?

Lauren Rob need to find a decimal equivalent to 39/50 Laura said she could write an equivalent fraction with 100 as the denominator in converted into a decimal. Rob said he could divide the numerator by the denominator. Who is correct?

Why is a gallon larger than a liter