A restaurant has 26 tables in its dining room. It takes the waitstaff 10 minutes to clear and set 4 tables. (How long would it take to clean and set up all the tables.)

It would 1 hour and 5 minutes or 65 minutes

Step-by-step explanation:

26/4 = 6.5

6.5*10 = 65

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.