At noon a radioactive sample decays at a rate of 4,000 counts per minute. at 12:30 pm, the decay rate has decreased to 2,000 counts per minute. the reduced decay rate at 1:30 pm, is

Multiply the polynomials (7x^2 + 9x + 7) (9x - 4)

The sum of a number and 5 is less than - 7

Tres números pares con 2,4,5

Mark bought a new video game priced at $49.99. A sales tax of 8% was added to his purchase. How much tax did Mark pay?

How long does it take to lewis hamilton travelling at 150mph to cover 15 miles?

How many pairs of parallel sides does the trapezoid below have

What is the value of h if h = 9.0? 100h = ?

In a newspaper, it was reported that the number of yearly robberies in Springfield in 2012 was 76, and then went up by 50% in 2013. How many robberies were there in Springfield in 2013?

Find the sixth term of the sequence a (n) = 6 (n-1) (-2)

Kelsey earns $7.20 an hour at her after school job. How much will she earn if she works 12 hours and 45 minutes next week? Write an equation to match the situation and solve.