7 7/8= 63/8
3 1/4= 13/4
63/8 -13/4 we bring to the same denominator
(63-26)/8= 37/8

then you figure out what you divide 56 by to get 4. which is 14. then you divide 42 by the same number 14.
Answer:
C.8x - 16
Step-by-step explanation:
multiple 4 with 2x = 8x,
then multiple 4 with -4 = -16
add 8x and -16 the answer is 8x - 16
Answer:
How to Conduct a Simulation
Describe the possible outcomes.
Link each outcome to one or more random numbers.
Choose a source of random numbers.
Choose a random number.
Based on the random number, note the "simulated" outcome.
Repeat steps 4 and 5 multiple times; preferably, until the outcomes show a stable pattern