Answer:
Tamara's monthly salary was $ 1,190.95.
Explanation:
Given that Tamara receives a salary of $ 875 plus 71/4% of all her monthly sales above $ 400, to determine how much money she earned in the month knowing that she made sales for $ 2,180, the following calculation must be performed:
2180 - 400 = 1780
71/4 = 17.75
1780 x 17.75 / 100 = 315.95
315.95 + 875 = X
1,190.95 = X
Thus, Tamara's monthly salary was $ 1,190.95.