A radioactive element has a half-life of 10 days. If 800 g of the element are now available in a laboratory, how much will remain after 25 days?

32 cookies. Each cookie costs $.65, including tax. Of the cookies she bought, 1/4 were lemon cookies. What was the total cost of only the lemon cookies?

To collect data on the signal strengths in a neighborhood, Briana must drive from house to house and take readings. She has a graduate student, Henry, to assist her.

IS this statement true, 12 + (13+10) = (12+13) + 10 and if so why

In the equation below, which value represents the constant of proportionality, k? y=6x

Which statements are true about the multiplication and division properties of rational expressions? Check all that apply. The closure property of multiplication states that the product of two rational expressions is a rational expression.

What is the final cost of an item that is priced at $18.75 with a sales tax rate of 8%?

2. For a school uniform, students can choose from either a white, blue or orange shirt; blue or tan pants; and black or brown shoes. If you choose one item from each, how many possible outfits could be made?

Factor 12x6 - 27y4 completely

The shorter leg of a 30°-60°-90° triangle is 6. what is the length of the hypotenuse? 12 description

Write out how many times 278 go into 70