Please show your steps

M of aftershock = 4.90

Step-by-step explanation:

5.6 = log(x/1)

1/5 * 398,107.1 = 79,621.4

79,621.4

m = log (79,621.4) = 4.90  

answer: sorry i can't you.

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.