Ellen buys 5 videos that each cost c dollars a dvd for $30 and a cd for $20. write an expression in simplest form that represents the total amount spent

5c+50

Step-by-step explanation:

5c comes from the 5 videos that cost c dollars. 50 is when you add the $30 for the DVD and $20 for the CD together. You add those up to get the answer, but you'll have to solve for c first, then you can solve it.

£126

Step-by-step explanation:

Ratio is 2:1 so the difference between the amount of money will be "1".  This is equal to £42 so 2 x 42 is 84 and 1 x 42 is 42, add them together and the answer is £126.