Answer:
We conclude that he purchased 20 rookie cards and 8 Hall of Fame cards.
Step-by-step explanation:
We know that Connor spent $66 on rookie cards and Hall of Fame cards. We know that rookie cards are four for six Hall of Fame two for nine.
Therefore, we calculate:

5·4= 20 rookie cards
4·2= 8 Hall of Fame cards
We conclude that he purchased 20 rookie cards and 8 Hall of Fame cards.
It would round to 124,610
Answer:
22x^2-20x+21
Step-by-step explanation:
thats if you meant x^2-10x+21x^2-21
Answer:
Solutions are x =4 and y = 1
Step-by-step explanation:

In this equation substitute
, we get

now substitute y =1 in x equation,

Solutions are x =4 and y = 1
Answer:
tangent
Step-by-step explanation:
tan = opposite/adjacent
the side opposite base of ladder angle is x, and the side adjacent is 15