Which of the following is a composite number?

A. 61

B. 111

C. 263

D. 307

can someone explain how to know if a number is composite and prime

Mr. Harris worked 40 hours this week. He also got a bonus of $180. He made a total $780. How much does Mr. Harris earns per hour?

Quincy ran from one corner of a field to the opposite corner, a distance of 100 yards. Then he ran along its length, a distance of 80 yards. How wide is the field?

Madea wrote this number 156.389 write a number that contains an 8 with a value 10 times as much as the 8 in madea's number and a 5 that has a value one-tenth as much as the in5 in madea's number

Six times the sum of - 3 and w

Bev is is making peanut butter banana bread. She always doubles the amount of nuts and peanut butter chips the total amount of chips and nuts after doubling is 4 1/2 cups.

The number of hours it takes Jack to drive from Boston to Bangor is inversely proportional to his average driving speed. When he drives at an average speed of 40 miles per hour, it takes him 6 hours for the trip.

What is 7 7/15 as a mixed number? also, what is 19/5 as a mixed number?

how many 4-Digit combinations can be made out of the numbers 1 2 3 4 5 6 7 8 without repeating the number in the same digit

Write an equation in slope-intercept form of the line with the given parametric equations. x = 8t + 3 y = 91 + 3

Julian wrote The following numeric pattern on the board 3,10,17,24,31,38. What numbers of julian's pattern are compound numbers.