Decimals between 8.0 and 10.0 with an interval of 0.25 between each pair of decimals on a number line

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total