The mathematical model c = 400x + 70,000 represents the cost in dollars a company has in manufacturing x items during a month. how many items were produced if costs reached $230,000?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20