Answer:
-1
Step-by-step explanation:
Find the difference of each sequence
19 - 15 = 4
15 - 11 = 4
11 - 7 = 4
7- 3 = 4
3 - ? = 4
Subtract 4 from the 3
3 - 4 = -1
Therefore, the next term is -1
X+1 is the answer for this question
$8.40 is the amount to be subtracted from the $42.00. If you multiply
20% (.20) by $42.00 you get $8.40. To get your final price subtract
$8.40 from $42.00 to get you final answer. I hope that helps.