Which are equivalent ratios to 1: 4? & i know this easy to but it got answer choices

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

15/16 as a decimal rounded to the nearest hundredth

Iwill give you ! what is the measure of ∠v ?