The table shows the relationship “Dental Assistants make 19 dollars per hour.” Hours (h)
Dollars (d)
1
19
2
38
3
57
4
76
5
95

Which statements are correct? Check all that apply.
The variable d is the independent variable.
The variable h is the independent variable.
The number of hours worked causes a change in the number of dollars earned.
The variable d is the dependent variable.
The number of dollars earned causes a change in the number of hours worked.
The variable h is the dependent variable.
The more hours that are worked, the fewer dollars that are earned.

Which of the following expressions is equal to 2x^2+8

Ineed to know the answer to this algebra question.

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.