A department store purchases sweaters wholesale for $16. The sweaters sell retail for $35. What is the percent increase to the nearest percent? A: 19%
B: 54%
C: 46%
D: 119%

What is the missing step in this proof ?

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?