PLEASE HELPP The half-life of Radium 226 is 1,620 years. If a 10 gram sample is present, how many grams of the
sample would be left after 1,000 years?

A. 5.89 grams

B. 4.62 grams

C. 7.18 grams

D. 6.52 grams

Use the diagonals to determine whether a parallelogram with vertices u(2,−2), v(9,−2), w(9,−6), and x(2,−6) is a rectangle, rhombus, or square. give all the names that apply.

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?