8 In the diagram below of isosceles triangle ABC, the measure of vertex angle B is 80°. If AC extends to point D, what is m_BCD? 50 B 80° 2) 80 IX 3) 100 A 130​

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.