Solve the system by substitution. -x-y-z=-8
-4x+4y+5z=7
2x+2z=4
I need help please help and thanks!!

The hypotenuse of a 45 -45 -90 triangle measure 7 square root 2 units

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.