As shown, suzi starts her hike at an elevation below sea level. when she reaches the end of the hike, she is still below sea level at -127 feet. what was the change in elevation from the beginning of suzi's hike to the end of the hike?

The measure of an angle is 117°. what is the measure of a supplementary angle?

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?

How many grams the dog will eat in 3 days?