A blueprint for a room has a scale of 1 inch to 4 feet. On the blueprint, one wall measures 8 inches in length. If l represents the length of the actual wall, what is l?

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=