When you multiply a number by 0.2, the answer is a) half the original number. b) twice the original number. c) one-fifth the original number. d) five times the original number.

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.