If 4 melons sell for $0.52, how much would 7 melons cost?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

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.