What is the decay constant for plutonium 240 if it's half life is 6,300 years?

What is the ratio 6/28 in simplest form?

It p (x) = x2 - 1 and 0 (X) - 5 (x-1), which expression is equivalent to (0-2) (x) ? 5 (x - 1) - x2 - 1 (5x - 1) - (x2 - 1) (x2 - 1) - 5 (x - 1) (x2 - 1) - 5x - 1

Mr. shu wants to hire one one of the two carpet companies to install carpeting in his basement. Is he more likely to hire Country Carpets or city Carpets?

Phoenix hiked the Rocky Path Trail last week. It took four days to complete the trip. The first two days she hiked a total of 26 miles. The second and third days she averaged 12 miles per day. The last two days she hiked a total of 28 miles.

Solve equation -143 = 1+8 (3 - 3b)

A certain hybrid car can travel 1 4/11 times as far as a similar non hybrid car can, each on one gallon of gasoline. If the non hybrid car can travel 33 miles per gallon of gasoline how far can the hybrid travel on 4/5 gallon of gasoline?

Combine these to like terms to create an equivalent expression: 4z - (-3z)

Estimate the sum of 9.327 + 5.72 + 4132 to one decimal place

Two student are reading a book. Keith reads 6 pages a day. tameka read 5 pages a day but he start sooner and has already read 15 pages

The sum of two numbers is 45 . The larger number is 7 more than the smaller number. What are the numbers?