Which expression is equivalent to the given expression?

19x−23x

a 19(x−23)

b x(23−19)

c 19x(1−23x)

d x(19−23)

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

Convert 50 kilogram to pounds. (the conversion factor from kilogram to pound is 2.2046.) a. 52.2 lb. b. 110.2 lb. c. 22.6 lb. d. 47.8 lb.

Indicate the formula for the following conditions: p^c(n,r)=