Aggie is an australian exchange student in china, and she currently has 14,000 yuan in her bank account. if the exchange rate changes from 1 australian dollar = 6.21 chinese yuan to 1 australian dollar = 6.37 chinese yuan, what happens to the value in australian dollars of the money in aggie's bank account?

Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.

Which of the following transformations will make coincide with ? a. counter-clockwise rotation 90º about a, followed by a translation 5 units to the right b. translation 5 units to the right, followed by a reflection across the y-axis c. translation 5 units to the right, followed by a reflection across the x-axis d. translation 1 unit up and 5 units to the right, followed by a reflection across the x-axis