How many ways are there to choose a half dozen donuts from 10 varieties a) If there are no two donuts of the same variety. b) If there are at least two varieties. c) If there must be at least one but no more than 4 glazed.

A lab researcher wants to find out whether mice will run through a maze quicker during the day or at night, after training. Describe what is being measured in this experiment and what variable is being manipulated?

Find the area of a triangle when A = 78°, b = 14 and c = 12. a. 78.4 units2 b. 82.2 units2 c. 76.4 units2 d. 84.2 units2

Is 0.1315 ... rational no

Which number is 645 less than 9,561

Rewrite the fractions 1/4 and 5/6 with a least common denominator

35x-3+2+146x=180 find value of x

What is the result of converting 6 inches into centimeters

Elizabeth is waiting for her flight at the airport. She decides to conduct an experiment. She wants to know how many people at the airport carry a laptop with them for their flight. She sees 50 people walk past her as she waits.

What is 6.3 : (6.03)

Need steps to solve this problem 5e+8f + (-2) e-12f