Subtraction:
2115 (20:15) - 0830 (8:30) = 20:75 - 8:30 = 12:45 P.m. = 1245
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Remaining pounds;
3-1=2 pounds
1 pound=16 ounces
2 pounds=32 ounces
She has 32 ounces remaining
The salesperson earns a commission of $391
The total amount of merchandise that he sold is $2300
The commission rate is given by


To convert the rate into percentage, multiply with 100%

Therefore, the commission rate is 17%.
Answer:
When we say an angle is on a circle, we mean the vertex is on the edge of the circle. One type of angle on a circle is the inscribed angle (see Inscribed Angles in Circles). Another type of angle on a circle is one formed by a tangent and a chord.