At a local store, kelly and martin bought some notebooks and pencils. kelly bought 4 notebooks and 25 pencils for 16.71. martin bought 6 notebooks and 20 pencils. what is the cost of 1 notebook and 5 pencils?

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.

Could someone with number 1 and 2

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)