Answer:
22
Step-by-step explanation:
The easiest way to do this is to multiply the number you got right by 1+ the percent you got wrong. In this case it would be 1+.18. If you multiply 18 by 1.18 you get 21.24. Because you cant have part of a question you need to round up. To check you can divide 18 by 22 and you get 81.81. I hope this helps!
We will determine the length of the segment DF as follows:
*We have that the triangles are similar, and therefore the following is true:

Now, we solve for DF:

From this, we have that the length of the segment DF equals 2.68 units.
She spent $9.
$16+$6 is $22, so the total $31 minus $22 leaves us with the $9 she spent for the taxi.
Answer:
13 quarters and 7 dimes
Step-by-step explanation:
3 dollars is 12 quarters. add 7 dimes gets you 75 cents then add 1 quarter gets you 20 coins and 3.95
So -390 -- 220 = -170
That was the change between the beginning and end of the turn.