you find a rock containing a mixture of element and lead. you determine that 20% of the orignial element remain; the other 80% decayed into leads. how old is the rock?

Isabella bought 1.1 kilograms of top quality hamburger meat at $5.00 per kilogram. how much did it cost?

List the following numbers in order from least to greatest: 2^2, 2^-2, 2^3, 2^-3

Is this question a correct one that can be solved or is it a wrong question, because it makes no sense to me ... We throw an object upward from the top of a 1200ft building.

If candace throws a dart at the board what is the probability that her dart is not in the circle

The length of a shadow of a building is 32 m. the distance from the top of the building to the tip of the shadow is 38 m. find the height of the building. if necessary, round your answer to the nearest tenth.

You are a receptionist at a doctor's office. A patient's bill for a checkup totals $85.00. The patient's health insurance requires the patient to pay 20% of the total bill. How much should the patient pay for the checkup?

At the grocery store, you can purchase loose lemons at 2 for $0.99. You can also buy a bag of 6 lemons for $2.50. Which is a better buy

What is bigger - 3/4 or - 1

which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x-1| - 1

Which statement best demonstrates why the following is a non-example of a polynomial? 33 y squared all over x squared - 62y2xz - 35z2y2 The expression has a variable raised to a negative exponent. The expression has a negative coefficient.