Tim has a large collection of books. the number of paperback books he owns is three less that four times the number of hard cover books. in total, tim has 447 books. how many hard cover books does he own? a). 90 b). 100 c). 110 d). 120

What is the equation of the graph below? y=sec(x)-4

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?

Gas is being pumped into a tank the total amount of gas g after amount of time t is given by the equation g= 50+20t if the total amount of gas that will fit into tank is 850 gallons how much time will take to fill the tank