Josh sold 4 more boxes of candy for the school fundraiser than jenny. the sum was 22 of the boxes they sold. how many boxes did they each sell?

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.

What is the measure of angle tvu shown in the diagram below

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?