What's (w•12) • 3? use 1 or 2 properties to rewrite each expression that does not use parentheses

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a