Which expression is equivalent to -1.3 + (-4.9) + (-2.6)? A. (1.3+4.9+2.6)
B. -(1.3-4.9)+(-2.6)
C. -1.3+(4.9+2.6)
D. -1.3-(4.9+2.6)

What is the absolute value of -100000000000000?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams