In the last year a total of 2749 earthquake occured in the country of these ,85.5% were minor tremors with magnitudes of 3.9 or less on the Richter scale how many minor earthquakes occured in the country in the last year? round to the nearest whole number

The mathematical expression 9€ t means

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.