The plural form of the upper chambers of the heart is

A diagnostic procedure in which a thin tube is guided into the heart under x-ray guidance after being inserted into a vein or artery is a(n)

(-3) + 12 = _____

450 drams = ______ gr. Use the fact that 1 dram = 60 grains.

In scientific notation 3,570,000 equals 

75 liters = _____ fl. oz.  Use the fact that 1 fl. oz. = 30 milliliters,

In scientific notation 0.000034 equals

A baby weighed 10 pounds 9 1/2 ounces at birth, and 12 pounds 5 1/2 ounces one month later.  How much weight did the baby gain during the month?  Hint:  one pound equals 16 ounces.

Solve the equation: 5(2x – 1) – 8 = 3(4x – 2) +3 x = _____

Find the surface area of a rectangular box with length L = 4, height H = 3, and width W = 9.