XYZ Music Store sells new CDs, n, for $ 13.50, and used $6.50 .The store eamed $ 456 revenue last month. The store sold 14 more used CDs than new CDs. Which system of equations represents this scenario?
A.6.5n +13.5U=456;u=n-14
B.13.5n+6.5u=456;u=n+14
C.6.5n +13.5u=456;u+n+14
D.13.5n+6.5u=456;u=n -14

It’s B

Step-by-step explanation: i took test

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

6 cm

step-by-step explanation: