A radioactive substance decays exponentially. A scientist begins with 130 milligrams of a radioactive substance. After 24 hours, 65 mg of the substance remains. How many milligrams will remain after 45 hours?

2*?+?*200+?*135=1735

A chef has less than 25.8 lb of rice. She takes out 5 lb to use during the day and stores the rest in containers. Each container has 2.5 lb of rice. Let x represent the number of containers. How many containers will she be able to put 2.

A soccer ball is kicked from the ground with an initial upward velocity of 90 feet per second. The equation h=-16t^2+90t gives the height "h" of the ball after "t" seconds. Find the maximum height of the ball.

The price of a ski jacket was $92.00. The tax rate was 5%. A. What was the tax on the ski jacket? B. What was the total price of the ski jacket including tax

9 - (-9) How do you show your work for this question?

What are the steps of translating 2 or 1 step expressions?

How to solve this equation-1/2 a+3b-b+9

How do you Evaluate |-a2|, given a = 5, b = - 3, and c = - 2

Manuel drives 300 miles to Orlando fl. He drives at 50 mile per hour. After driving for two hours he takes 15 minutes break two hours after his first break he takes a 30 minutes break the he drive for two hours more including the two breaks how long

267.4 divided by 1/10