Trapezoid ABCD with vertices A(-3,6) , B (0,7), C (1,4) and D((-5,2) : <4,-1>

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?

Use the distributive law to multiply. 3(4x + 5y + 6)

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?