Which of the following interpretations for the given expression is correct? A. The sum of x2, 6x, and 4. B. The product of x and the sum of x, 6, and 4. C. The square of the sum of x, 6x, and 4. D. The sum of the square of x + 6 and 4.

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

2x minus y equals 6, x plus y equals negative 3