A car travels a distance of 100 miles in a time of 2.6 hours. What is its average speed rounded to 1dp?

Me because some of question i don’t understand

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

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.