A polygon has an area of 8 square units. If the polygon was enlarged with a zoom factor of 4, what's the bigger polygon's area? *

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

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?