Final answer:
To estimate the cost to rent 3 movies and buy snacks, calculate the cost of the movies and snacks separately and add them together. The estimated total cost is $16.92.
Step-by-step explanation:
To estimate the cost to rent 3 movies and buy popcorn, a soda, and a candy bar, we need to calculate the cost of the movies and the cost of the snacks separately, and then add them together.
The cost of renting 3 movies is $3.75 x 3 = $11.25.
The cost of buying popcorn, a soda, and a candy bar is $1.89 x 3 = $5.67.
Therefore, the estimated total cost is $11.25 + $5.67 = $16.92.