Jeff had $20. He spent 18 of his money on lunch and 25 of his money at the movies.
How much money does Jeff have left?

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.

If a || b and e || f , what if the value of y ?

(x-5)1/2+5=2 what is a possible solution?