I cant solve part B and C

I posted the picture with the questions

Multiproduct scooter follow: a. What is Green Roder's breakeven poirt in units and sales dollan? c. Assume the sales mix shifts to 50 percent Mod, 40 percent Rad, and 10 perkent Xtreme. How does this change affect your ariswer to (a)? Note: Do not round until yous determine the number of units of each prodect round number of units to the next highest whole unit in your c ic culations Multiproduct scooter follow: a. What is Green Roder's breakeven poirt in units and sales dollan? c. Assume the sales mix shifts to 50 percent Mod, 40 percent Rad, and 10 perkent Xtreme. How does this change affect your ariswer to (a)? Note: Do not round until yous determine the number of units of each prodect round number of units to the next highest whole unit in your c ic culations