What is the product of 3/5 x 4/9 written in simplest form?

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?

Alogical argument that is presented in graphical form using boxes and arrows is called?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?