I'm not sure if you're asking for a number in place of Q, but if so then:
Anything between 1 and 2.
12 * 1.5 = 18.
Answer:
.875
Step-by-step explanation:
Divide 7 by 8
Answer:
Alicia has 9 dollars and Haley has 13 dollars.
Step-by-step explanation:
Let Alicia's money be
. Hence, Haley's money will be
Together:
.
Therefore, 
Subtract 4 from both sides:

Thus,
. Alicia has 9 dollars.
Haley's amount:
.
Divide amount of grapes by number of people.
= 1/2 lb ÷ 4 people
to divide a fraction, multiply by the reciprocal (inverse)
= 1/2 * 1/4
= (1*1)/(2*4)
= 1/8 pound
ANSWER: Each of the 4 people will get 1/8 pound of grapes.
Hope this helps! :)