Which of the following is a regular polygon
a. rectangle
b. circle
c. equilateral triangle
d. trapezoid

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

Analyze the diagram below and complete the instructions that follow. how to find tan