5. Write a system of equations and solve using substitution or elimination.
Adult tickets to the playoff basketball game cost $9
each and student tickets cost $5 each. If tickets for a
group of 23 people costs a total of $143, how many
adults and how many students were in the group?
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Nneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?