There are five rods. One is of length (a + b), two of length ‘a’ and two of length ‘b’. These rods are arranged to form two equilateral triangles, as shown in the figure. PC and BQ are joined. On the basis of the above information, answer the following questions

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years