Phil has 3 times the amount of rocks as peter together they have 84 rocks how many more does peter have than phil

This is different from the first one can someone me

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.

(x-5)1/2+5=2 what is possible solution of this equation