A music store has 5 guitars for sale. Each guitar has 6 strings. The manager wants to replace all the strings. How many new strings does he need?

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank