Question #1
A radioactive substance decays at a rate of 25% every 10 years. Which equation represents the
of the substance (S) remaining from 100 grams after 300 years?

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000

Write down in words the number 65 405