Radium-226, which has a half-life of 1620 years, is used in medicine for treatment of disease. find the value of k for radium-226. how much of a 100-gram does of radium-226 will remain after 3240 years? round to the nearest gram.

In a survey, one out of five people named blue as their favorite color. Three out of ten named red. If 1,100 people were included in the survey, how many named blue or red as their favorite color

Baker had 5/8 yd of toilet paper at home. he used 10/12 of it. how much toilet paper did he use?

What is the perimeter of a rectangle with a length of 23 mm and a width of 26mm

According to the Pew Research Center, 14% of adults rate basketball as their favorite sport. Your boss believes the proportion may be lower among adults over age 65 and wants you to collect evidence to see if this is true.

Score: 0 of 1 pt 7.4.41 From a standard 52-card deck, how many 5-card hands consist entirely of black cards?

Kelly is reading an 858-page book. During the past 6 days she has read 468 pages. At this rate, how many more days will it take her to complete

How to calculate the area of trapezium by only giving one base?

The product of 4 and a number plus the product of 3 and the same number is 35. What is the number

Here are the iq test scores of 31 seventh-grade girls in a midwest school district: 114 100 104 89 102 91 114 114 103 105 108 130 120 132 111 128 118 119 86 72 111 103 74 112 107 103 98 96 112 112 93 these 31 girls are an srs of all seventh-grade

Seven less than the sum of p and t is as much as 6