Which expression has a positive value?

(-5) (-9)

2-4

12-1-4)

-3 + (-7)

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