Lexi and Bella are jogging buddies. Lexi takes a break after every 10 minutes and Bella takes a break after every 15 minutes. After how many minutes will it take for Lexi and Bella to take a break together for the first time?

Your vet has placed your pet on a diet. the diet is to contain at least 12 mg of fat and at least 14 mg of protein per serving. these requirements are to be obtained from two food sources. source a contains 2 mg of fat and 2 mg of protein per serving. source b contains 1 mg of fat and 3 mg of protein per serving. if source a sells for $1.28 per serving and source b sells for $1.12 per serving, how many servings of each type should be purchased to satisfy the requirements at minimal cost?