Answer:
y = 2
Step-by-step explanation:
20y - 21 = 10y - 1
20y = 10y + 20
10y = 20
y = 2
Answer: in a quiet room or the library,
also you better summarize your geometry lessons and remember the formulas :P
Y = 10 +2x . . . . . . y is dollars, x is number of cards.
F<span>undamental Counting Principle (FCP) is the answer </span>
The quotient would be 192
