Abasketball coach is ordering jerseys for members of the basketball team and can choose between small, medium, and large jerseys. the cost of a small jersey is x dollars. the cost of a medium jersey is 1 dollar more than the small jersey, and the cost of a large jersey is 2 dollars more than the medium jersey. the coach orders 5 medium jerseys and 7 large jerseys for a total cost of $146. the equation below can be used to find the cost, in dollars, of one small jersey. 5(x + 1) + 7(x + 3) = 146 enter the cost, in dollars, of one small jersey.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

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

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?