If 60% of a radioactive element remains radioactive after 400 million years, then what percent remains radioactive after 500 million years? What is the half-life of this element?

Each day Shelia doubles the number of push-ups she did the day before. On the fifth day, she does 2x2x2x2x2 push-ups. Use an exponent to write the number of push-ups Shelia does on the fifth day.

A recipe calls for 1 12 cups of flour, 34 cup of white sugar, and 18 cup of brown sugar. (a) How many total cups of ingredients are there? Show your work.

Which shows two triangles that are congruent by ASA? 2 right triangles are connected at one side. The triangles have 2 congruent sides and one congruent angle. 2 triangles are connected at one side. The triangles also have 2 congruent angles.

Layla wants to participate in a 20-kilometer bicycle race. She is considering using one of the two trainning programs below Program A; Ride 10 kilometers on the first day and increase the distance by an additional 500 meters each day ProgramB;

69108 what is this number written in standard form

6. Which expression is equivalent to the algebraic expression below? A - 5 C. - 12 + 20 D. - 128 - 5

Multiply 8.88x10 to the 4th power. Explain the shift of the digits and the change in the value of each digit

How can you distinguish between linear and exponential functions? How do linear and exponential functions compare as the domain increases?

Solve the problem. Sergio's internet provider charges its customers $7 per month plus 3¢ per minute of on-line usage. Sergio received a bill from the provider covering a period and was charged a total of $28.70.

After deductions of $45 were withheld this week from Ed's weekly earnings on his part-time job, his take-home pay was $240. Ed had worked 30 hours this week. How much did Ed earn per hour?