The price of an item dropped to $91 today. yesterday it was $130. find the percentage decrease.

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer