Which situation represents a combination? a. Seven people running for chair andvice-chair
b. first and second place in a race
c. choosing a committee of three people from a group of 10
d. Five people in line to buy tickets

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin