What is 1+//1 please answer im too stupid

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.