A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the high-qua ty version is 4.1 MB. Yesterday, the high quality version was downloaded four times as often as the standard versions. The total size downloaded for the two versions was 5264MB.

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Evaluate the expression. (9 + 5)(3 + 2)0

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]