Acertain elevator has a maximum weight capacity of 1,000 kilograms. ten people weighing a total of 7,000 hectograms get on the elevator. how much more weight can the elevator hold before it reaches its maximum capacity?
hectograms

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?