200 quarters equal 50$
150 dimes equal 15$
300 pennies equal 3$
50+15+3=68$
1,3,4 just match the markings.
Notice that we have a difference of squares in the numerator of our expression. In the denominator we have a quadratic expression of the form
. So we can factor both numerator and denominator and cancel common terms:
We can conclude that the correct answer is the fourth one:
Answer:
A -3b +4
Step-by-step explanation:
1/2 (2A - 6b + 8)
1/2 *2A - 1/2 *6b +1/2 *8
A -3b +4