A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (¤) and number of sit ups a person can do (y). The results of the regression were: y=ax+b a=-0.985 b=31.518

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= There are 95 toys to be given out to a group of children. A ball costs $2, a doll costs $3, and a car costs $4. A total of $280 was spent on the toys. a) A ball weighs 11 oz, a doll 15 oz, and a car 16 oz. The total weight of all the toys is 1354 oz. Determine the number of each type of toy purchased. There were 22 ball(s), 56 doll(s), and 17 car(s). b) Now suppose the weight of a ball, doll, and car are 11, 17, and 23 oz, respectively. If the total weight is still 1354 oz, how many solutions are there? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. There are solution(s). B. There is no solution. c) Keep the weights as in part b, but change the total weight to 1585 oz. How many solutions are there? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. There are OB. There is no solution. solution(s).

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