The decay rate for a radioactive isotope is 9.29.2 percent per year. find the half-life of the isotope. round to the nearest tenth of a year.

If you multiply any number by zero, your answer will be that same number. impossible. zero. negative.

The movie theater has a special. Customers pay $7 to enter the theatre and $3 for each movie they watch. Which graph shows the amount of money customers will spend if they watch a certain number of movies? A. B. C.

Georgia participated in a sleep study in which scientists found that she fell into REM sleep exactly every 45 minutes while she was asleep. If Georgia was asleep for 6 hours (390 minutes), how many periods of REM sleep did she have?

Sonia bought 4 dozen eggs at Rs. 10 per dozen. 6 eggs were broken. What percent of his money goes waste

The price of the oil went from 6.60 to 11.00 per case of 12 quarts. Find ratio of the increase

What is 7 hunderedths in simpilest form?

Solve - 7x + 2x = - 45.

A car travelled 100 km with half the distance at 40 km/h and the other half at 80 km/h. Find the average speed of the car for the whole journey.

A milk container capacity is one gallon. How many cups would that equal?

Bought three boxes totaling 151 book cost 50% more than the other two what was the price of the more expensive book 80 85 90 95 100