PLEASE SOMEONE HELP ME ITS DUE TONIGHT

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.