Radium 226, which had been used for cancer treatment, decays with half-life of 1622 years. Suppose there is 2.3gram sample of Raduim 226. How long will it take to have 1.7 grams remaining?

Ken paid $12 for two magazines. The cost of each magazine was a multiple of $3 what are the possible prices of the magazine?

Gavin drives at a speed of 70 miles per hour how long will it take to drive 245 miles

2,165.413 to the hundredth

What's the absolute value of - 2/3 in rational number

What is the median for the set of data? Ages Stem Leaves 5 0, 4, 6 6 0, 2, 3, 4, 8, 8, 9 7 0, 2, 3, 4, 4, 4, 8, 9 8 4, 5, 6, 8 5|0 = 50 years old 70 71 72 74

Kelly has a ribbon that is 60 inches long she cuts at 40% of ribbon for an art project while working on the project she decided she only needs 35% of the pieces she cut off how much of the ribbon does Kelly end up using in a project

Which expression is equivalent to x (y+z) ? a) xyz b) x+y+z c) xy+z d) xy+xz

8.92*10^9 in standard notation

On a test Matilda answered 12 out of the first 15 correctly. If this rate continues how many of the next 25 problems will she answer correctly?

Which expression shows the value of a $10,000 investment that has lost 1.2% if it's value for five years In a row