This is urgent! : (
emma is 3 times as old as tara.
in another 7 years emma will be twice as old as tara will be.
write at least one question and use algebra to find emma's age now.

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?