The simplified version of this equation is 14.2+-5a. Hope I helped
Answer:

Step-by-step explanation:
The side of the house is a side of the right triangle.
The ladder is 3 feet away, so it forms a triangle with sides 3, 10, x.
We're trying to find the hypotenuse, which is given by Pythagoras' Theorem:

45.75/3= 15.25
(45.75-15)/3= 10.25
A= $15.25
B=$10.25
Answer: 15 miles
<u>Step-by-step explanation:</u>
2/3 of the way is 30 miles
Let x represent the total distance to grandmother's house, then

Since the total distance is 45 and they have already driven 30 miles, there is 15 miles to go