white black red
king K-W K-B K-R
queen Q-W Q-B Q-R
jack J-W J-B J-R
Please mark as brainlist!
Answer:
36 times 2 is 72
Step-by-step explanation:
That is what you're asking right? I'm just going by the last one.
Kala call lasted for 0.36 minutes
<em><u>Solution:</u></em>
Given that Kala purchased a prepaid phone card for $15
Long distance calls cost $12 a minute using this card.
If the remaining credit on her card is $10.68
To find: Number of minutes her call lasted
Let "x" be the number of minutes her call lasted
Cost of 1 minute = $ 12
Total balance = $15
Remaining balance = $ 10.68
So we can frame a equation as:
Total balance = Remaining balance + Cost of 1 minute x number of minutes her call lasted

So her call lasted for 0.36 minutes
Step-by-step explanation:
x² + 4x - 9
= (x + 2)² - 13
a = 2, b = -13.