Answer:
If she wants to run 16 more miles in four days (30 miles minus already done 14 miles) she can run 4 miles a day for the next four days. 4 miles a day.
Step-by-step explanation:
You FOIL
9x^2-15x+21x-35
Combine like terms
9x^2 + 6x - 35
-7 is less than 16 because -7 goes behind 0 and 6 is a positive number
9 is the base of the triangle 4 is the leg and 5 is the