Just started class again, help with some review questions.

**FIND THE NUMBER OF UNITS THAT GIVES BREAK-EVEN FOR THE PRODUCT. ROUND YOUR ANSWER TO THE NEAREST WHOLE UNIT. ANSWER IN A COMPLETE SENTENCE.**

125) A manufacturer has total revenue given by the function R = 130x and has total cost given by C = 293,000 + 10x, where x is the number of units produced and sold.

**SOLVE BY WRITING A THREE PART INEQUALITY THEN SOLVING IT. WRITE ANSWER IN A COMPLETE SENTENCE.**

132) Assume that the mathematical model C(x) = 15x + 170 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured while keeping costs between $467,000 and $692,000.

** SOLVE THE INEQUALITIES**

144) -6z + 6 ≥ -7z + 4

145) -5 < (6-3x / 3) ≤ 7