Help please, don't answer if you don't know. ill give brainiest Information about a rectangle is given below. Find the missing measurement.

Area = 63 km2
Length = 7 km
Width = ? km

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Find the least common denominator for thesetvo rational expressions. n^2/n^2+4n+4 -3/n^2+7n+10

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.