A helicopter leaves its base and flies 40km on a bearing of 050° and then 30km on a 3 bearing of 105° a) Draw a scale diagram to show this information. How far is the helicopter from its base? b) On what bearing does the helicopter need to fly in order to return to its base?

Plz which expression is equivalent to the expression below?

Can you simplify 4/7? 24 points will be awarded!

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.