(7x^2-2x+5) - (3x^2+4x+10) simplify and show steps

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.