The table compares the price of an item to
the amount of sales tax. which is the
independent variable?
price $2.40 $3.00 $3.60 $4.20
sales tax $0.12 $0.15 $0.18 $0.21
a.
the price, because the price values
are greater than the tax values
b.
the sales tax, because it is never part
of the price
the price, because the price
determines the sales tax
d.
the sales tax, because it varies
according to the price

Ineed with number 17 i don’t get it at alll

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.