Find the common divisor of 15 and 28

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Me asap! what is the slope of this line? enter your answer in the box.

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students