Andrena offers to buy snacks for her friends at the movies. Popcorn, p, costs $7.00. Candy costs $3.00. Water for everyone costs $6.00. Andrena knows that the cost of the snacks can be found using the expression 7p + 3c + 6.

Which term will help Andrena determine the amount of money she will spend on popcorn?

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)