Arectangle has a perimeter of 28. it is dilated by a scale factor of 3. what is the new perimeter?

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?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?