On first day of every month, katie gets 400 phones to repair. she repairs 12 phones every day after that day. how many phones does she have left to repair at the end of the fifteenth day of the month?

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 dimensions can créate more than one triangle ?

Find the value of x. give reasons to justify your solutions! l, m ∈ kn