Ó pizzas were shared equally among a group of children. Each child got a pizza. How many children were in the group?
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Find the length of cu, the triangles are similar.

What is the standard form of -5x^2+2x^4-11+x^3+3x

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?