Please answer fast! this is my first question so I think I'm giving 10 points? I'm not sure how it works- if the producer in a food chain has 1000 kcal of energy available, how much energy would each of the consumers have?

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).