Answer:

Step-by-step explanation:

Convert the mixed numbers above to improper fractions

Rule of basic operation states that when dividing fractions, the division sign changes to multiplication sign thus turn the right hand side of the fraction inversely such that 7/6 becomes 6/7.



Converting the answer above to mixed number result to:

Answer:
Add them all up -11+-18+12+-8+21=-4
Then do -4/5= -.8
Answer:
D
Step-by-step explanation:
The correct answer is D because 7 plus 3 is 10, not 11
Step-by-step explanation:
If there are 20 yellow marbles,
there must be 32 - 20 = 12 red marbles.
P(Red marble)
= 12/32
= 0.375.