Approximately 9 out of 10 smokers began smoking before the age of 21. In a group of 400 smokers, about how many of them started before they reached their 21st birthday?

Classify the following statement as an example of classical probability, empirical probability, or subjective probability. Explain your reasoning.

In the diagram, GB = 2x + 3 ... What is GB 5x G x + 9A

Find a third-degree polynomial equation with the rational coefficients that has roots - 3 and 1+i

marcela's dog gained 4.1 kilograms in two months. Two months ago, the dog's mass was 5.6 kilograms. What is the dog's current mass?

Jennifer went to the post office for stamps. She bought the same number of 8-cent stamps and 10-cent stamps. She also bought as many 2-cent stamps as both of the other two kinds combined. How many of each kind did she get if she paid a total of $4.

Powierzchnia działki, której granice zaznaczone zostały na mapce zamieszczonej obok jest równa 12arów. Wyznacz skalę mapki jeżeli wymiary tej prostokątne działki są równe 2cm * 1,5cm. Oblicz ile metrów siatki należy kupić aby ogrodzić działkę?

The temperature on Saturday was 6 1/2 °C. On Sunday, it became 3 3/4 °C colder. What was the temperature on Sunday?

7 cm Find the circumference of o P. Leave your answer in terms of. A. 7 cm B. 77 cm C. 147 cm D. 497 cm

125 pounds decreased by 4% Find the new amount

The graph of y = x2 + 11x + 24 is equivalent to the graph of which equation? A) y = (x + 8) (x + 3) B) y = (x + 4) (x + 6) C) y = (x + 9) (x + 2) D) y = (x + 7) (x + 4)