Answer:
x = ± 15
Step-by-step explanation:
Given
x² = 225 ( take the square root of both sides )
x = ± = ± 15
That is x = - 15 0r x = 15
X² = 225
Finding the square root of both side
√X² = √225
X = 15 or -15
$45.50
1. $65.00 ÷ 100 = 0.65
2. 0.65 x 30 = $19.50
3. $65.00 - $19.50 = $45.50
4.4
