In a random sample, 328 out of 920 12th graders in California smoked marijuana within the last year. Answer questions 1-4, and round to 3 decimal places.

How do you show work for 3x-11=22

How to divide 64 by 0.4

A certain type of plywood consists of 5 layers. The thickness of the layers follows a normal distribution with mean 5 mm and standard deviation 0.2 mm. Find the probability that the plywood is less than 24mm thick.

A store pays $10 for a bracelet, and the markup is 115%. A customer will also pay a 5 and 1/2% sales tax. What will be the total cost of the bracelet to the nearest cent

X+y+z = 4 x+y-z = 2 (t kuadrat - 4 = t-2 Berapakah nilai t agar sistem tersebut A. Tidak memiliki penyelesaian B. Satu penyelesaian C. Tak terhingga banyak penyelesaian?

What are the solutions to the equation y2 - 1 = 48?

1/4 to 1/2 percentage of change

Solutions to x^2 - 2 = x

Olivia has $250.00 when she opens her cupcake shop inthe morning. she sells each cupcake for $3.50.

The length of an arc of a circle is equal to 1/5 of the circumference of the circle. If the length of the arc is 2π, the radius of the circle is