Evaluate the experssion when
The value of the expression is .
Two numbers with similar signs get added and the resulting number carries the similar sign.
Two numbers with opposite signs get subtracted and the resulting number carries the sign of the larger number.
To add or subtract two decimal numbers, write the numbers vertical with decimal point aligned vertically.
For example: to add the numbers 2.3 and 4.62, write these numbers vertically and add as shown below
To evaluate the expression , substitute the values of c as 3.5 and value of a as 2.5 and subtract the numbers as shown below,
Thus, the value of the expression is .
DVD Rentals You belong to an online DVD rental service. Your yearly rental budget is $200. Each rental costs $4.
a. Copy and complete the table.
b. Write a variable expression for the cost of r rentals.
c. Write a variable expression for the amount of your budget left after r rentals.
d. Writing How many DVDs will you be able to rent before the $200 is spent? Explain how you found your answer.
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