a 250g packed of 10 dised salt cost 150naira, azoka sack of salt costs 10,400naira. calculate the saving per kg by buying the zoka sack of salt​

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.

Simplify the expression. -2/5(10+15m-20n)

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9