The amount Barbara earned this month is $1512.
<h3>How much did Barbara earn?</h3>
Percentage can be described as a fraction of an amount expressed as a number out of hundred.
Barbara's earnings = percentage commission x worth of goods sold
7% x 21,600
0.07 x 21,600 = $1512
To learn more about percentages, please check: brainly.com/question/25764815
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<span>2x+12y=-1
</span>y = -1x/6 -1/12
Perpendicular lines<span> are </span>lines<span> that cross one another at a 90° angle. They have slopes that are opposite reciprocals of one another. Therefore, the slope of the perpendicular line in this problem is the opposite reciprocal of -1/6 which is 6. The equation would be
</span><span>y=(6)x+9</span>
If the guppies multiply by four in six months then that 4 raised to the power of six. Then multiply it with the starting number of guppies which is 6Formula=4^6 (6)4096 x 6= 24576
So, there are 24, 576 guppies in six months. The answer is A.
He earns 18% tips on his food sales. So, his tips are proportional to the amount of food he sells.
From what you know about the restaurant business, what would have to be true for his tips to be proportional to the amount of hours he works?
Do you think that situation (Michael's amount of food sales being the same every hour) is likely in a real restaurant?
