For her holiday, Alyssa changed 2800 Malaysian Ringgits (MYR) to US dollars ($) when the exchange rate was 1 MYR = $0.325 .At the end of her holiday she had $210 left.(a) How many dollars did she spend?(b) She changed the $210 for 750 MYR. What was the exchange rate in dollars for 1 MYR?