Answer:
Step-by-step explanation:

d) Let the cost of one group lesson be x and one private lesson be y

Decimal Form = 0.6
Simplified Fractional Form = 3/5
Answer:
-2f
Step-by-step explanation:
Answer:16b square root of 5 -8
Step-by-step explanation:
The answer is <span>10 was added to each side.
</span>
<span>x² + 8x + 60 = x² + 12x + 20
____
Subtract x</span>² from both sides:
x² + 8x + 60 - x² = x² + 12x + 20 - x²
8x + 60 = 12x + 20
60 - 20 = 12x - 8x
40 = 4x
x = 40/4
x = 10
So, 10 was added to each side.