See attachment
distance from ice cream to your house=distance from ice cream to friend+distance from friend to your house
distance from ice cream to your house=12
distance from ice cream to friend=?
distance from friend to your house=3
12=?+3
minus 3 both sides
12-3=?+3-3
9=?+0
9=?
answer is 9 miles
1 and a half times because 10 goes in to 25 two times but 10 can't go into 25 so you will get 5 left and 10 - 5 is 5 and 5 tenth makes a half so the answer is,
1 and a half times
I would answer the problem but first upload the diagram
3/5(15d+20)−1/6(18d−12)=38
Simplify
3/5(15d+20)−1/6(18d−12)=38
(3/5)(15d)+(3/5)(20)+−3d+2=38(Distribute)
9d+12+−3d+2=38
(9d+−3d)+(12+2)=38(Combine Like Terms)
6d+14=38
Subtract 14 from both sides.
6d+14−14=38−14
6d=24
Divide both sides by 6.
6d/6 = 24/6
d=4