An electric clock takes 8 seconds to sound 3 times at 3:00. How long would it take to sound 6 times at 6:00?

In the 30-60-90 triangle below side s has a length of and side r has a length

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?