The sum of the ages of zelda be her sister mae is 45. zelda's age is three more than twice mae's age. how old is each girl? write a a system and solve

Akayaker travels 3 miles upstream and 3 miles downstream in a total of 4 hours. in still water, the kayaker travels at a speed of 2 mph. what is the average speed of the river's current?

1.multiply and simplify if possible. √7x (√x − 7√7) 2. what is the simplest form of the radical expression? 33√2a−63√2a

Simplify 1 divided by 2/3 x (-3) divided by 1/6 x (-10)