Final answer:
The expressions that represent how much Leila pays in total for the dinosaur model are 1.07x, 0.7x + x, and 1.7x.
Step-by-step explanation:
The correct expressions that represent how much Leila pays in total for the dinosaur model are:
- 1.07x
- 0.7x + x
- 1.7x
Step-by-step explanation:
Leila has to pay a 7% percent tax on the price of the model, which means she needs to add 7% of the model's price to the original price.
To calculate this, we multiply the price of the model (x) by 7/100 (or 0.07) and then add it to x:
0.7x + x = 1.7x
Alternatively, we can directly calculate the total amount including tax by multiplying the price of the model (x) by 1.07:
1.07x
Learn more about Calculating total cost with tax