4. A 50 meter tall tree casts a shadow that is 60 meters long. Find the distance between the top of the tree and the shadow .

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?

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?