Terry earned $90 plus 10% of his sales for a net of $159. how much were his sales? $690 $820 $525 $875

First, subtract 90 from his total

159 - 90 = 69

Next, divide the remainder with 10%

Note that 10% = 0.10

69/0.10 = 690

$690 is your answer

hope this helps

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.