A, b and c can do a work in 20,30 and 60 days respectively. if b and c a in every 3 days, when can a finish the work?
12 days
15 days
16 days
18 days

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.

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers