The total cost of 9 bracelets, including shipping was $72. the shipping charge was $9. define your variable and write and equation that models the cost of each bracelet. ((there is a second part to this question which will be in the picture with that as well ))

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry