Answer:
Step-by-step explanation:
x^2 + 7 = 23
x^2 = 16
√x² = √16
x = 4
1. -43+17 = -26 the answer is C
2. -20-65+4 = -81 the answer is A
3. 121÷11 + 3.4/2 = 12.7
Answer:
34.8%
Step-by-step explanation:
$600+15%
=600+15/100*600
=600+90
=$690
You have $450 and you want to purchase a product of $690(regular price+sales tax)
$690-$450
=$240
Percentage of $240 discount
=240/690*100
=34.78%
Approximately 34.8%