An herbalist has 20 oz of herbs costing $4 per ounce. How many ounces of herbs costing $2 per ounce should be mixed with these 20 oz of herbs to produce a mixture costing $2.80 per ounce?

What other information do you need to prove triangle dac=bca by asa

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.

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?