Number 1 is A, number 2 is B number three is D
Answer: the school paid $80 for the book.
Step-by-step explanation:
Let x represent the amount that the school paid for the book.
Her school charges a lost book fee equal to 75% of the cost of the book. It means that the amount that the school would charge on a book that cost $x is
75/100 × x = 0.75 × x = 0.75x
Sarah received a notice stating that she owed the school $60 for he lost book. It means that
0.75x = 60
x = 60/0.75
x = $80
Answer: D)3.5h+4
Step-by-step explanation:
Let h denotes the number of hours that the ice skates are rented.
Since, The cost of renting ice skates is $4 plus $3.50 for each hour that the ice skates are rented.
So , the total cost for ice-skating = $4 + $3.50 x (number of hours that the ice skates are rented.)
= 4+3.50 x ( h) [as expression]
Hence, the expression can be used to find the cost in dollars of renting ice skates for h hours :-
