Two pyramids like the one below sit on top of the gates at the entrance to the bridge.

Which expression shows how to determine the minimum amount of cement used to make each of the pyramids?

1.1/3(10)(10)(12)

2.1/2(10)(10)(12)

3.4[1/2(10)(13)]+10(10)

4.4[1/3(10)(13)]+10(10)

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Can someone me with this problem . show your work .