Agroup of 15 people go to the movie theater. they each get 2 drinks and 3 bags of popcorn. they got a special deal where all 12 of them get to see the movie for $65 dollars. the cost for them combined in dollars is given by the expression 15(2d + 3p) +65, where d is the cost of a drink and pis the cost of a bag of popcorn. a drink costs $4.50. a bag of popcorn costs $4.00. what is the group's total cost?

4. find the geometric mean of 4 and 12. 24 8

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?