On 31st December 2015 the GBP/USD exchange rate was 1.47360. On 31st December 2016 it was 1.23321. Calculate the percentage decrease in the exchange rate. Round your answer to the nearest whole percent.
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bala

Solve: 3x+y=6 4x-2y=18 show all work !

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list