Cesium-137 has a half life of approximately 30 years. How much of a 40 g sample would be left after 90 years?

A. 14.33 g

B. 6.31 g

C. 32.49 g

D. 5 g

E. 26.67 g

Simplify the expressions and find the answer. (3 - 5/9 divided by 3 - 23/9) to the power of 3/2

Factor the polynomial. 13x² - 20x - 12

Maria's parents invested 14000 at 6%per year compounded monthly. How much money will there be in the account after 10 years

Evaluate a + 6 for a = 10. 6 16 60

Bulan rows on a crew team. her team rows their boat at a split rate of 2min/500m

Emeril mixed 3/10 cup balsamic vinegar with 2/10 cup oil to make a salad dressing. Then he use 1/10cup of mixture for a large salad how much oil and vinegar mixture was left over?

A car with a diesel engine travels 663 miles using 13 gallons of fuel. Suppose that the relationship between the distance traveled and the amount of fuel used by this car is proportional. Write an equation to represent this relationship

Amelia knits 1/10 of a scarf in 48 minutes. What fraction of a scarf can Amelia knit in 1 hour?

Each equation given below describes a parabola. Which statement best compares their graphs? y = - 3x2 y = - 7x2 A. Both parabolas open downward, and y = - 7x2 is wider than y = - 3x2. B.

What is the value is a 42=8a