A textbook store sold a combined total of 402 sociology and chemistry textbooks in a week. The number of sociology textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?

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Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?