Dante, Cooper and Maria are friends. If Dante is twice as old as Cooper and Maria is one year older than Dante. Which expression below BEST represents the sum of their ages. Select one:

a. 5x + 1

b. 2( x  + y)

c. 2x + y

d. 5xy

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)