Answer:
y = 30 + 11x
Step-by-step explanation:
1. 30 is permanent. You only pay for (one) certain snorkeling gear. However, every hour that you swim, you pay $11. Therefore, since we already got our gear, and say, maybe we wanna go swim for 3 hours;
here is our equation:
y = 30 + (11*3)
y = 30 + 33
y = 66
So I'm going to spend 66 dollars in total.
Hope this helped! :)