The Richter scale measures the magnitude, M, of an earthquake as a function of Its Intensity, I, and the Intensity of a reference earthquake, Io. log()
M =
Which equation calculates the magnitude of an earthquake with an intensity 10,000 times that of the reference earthquake?
OA.
M =
log(10,000)
(10,000
OB.
M =
log(10,000
OC.
M =
log(10,000)
log(10,000)
OD. M =

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Can someone me with the property questions for 12 13 and 14 plz