Answer:
$79.20
Step-by-step explanation:
20% of $66 = $13.20
$66 + $13.20 = $79.20
Answer:x=8
Step-by-step explanation:
3×4 = 12 so 2×4 = 8
Answer:5.29 pounds
Step-by-step explanation:
135.25 -129.6
Answer:
A
Step-by-step explanation:
the standard form of a quadratic equation is
ax² + bx + c = 0 : a ≠ 0
obtain (5 + x)(5 - x) = 7 in this form by expanding the factors
25 - x ² = 7 ( subtract 7 from both sides )
18 - x² = 0 ( multiply through by - 1 )
x² - 18 = 0 ← in standard form
with a = 1, b= 0 and c = - 18 → A
