Answer:

Step-by-step explanation:
Here first open the inner parentheses and use the distributive property,

Answer:
6. 11.25 miles
7. The Mall; 1.13
8. No, because a one-way there is 17.3 miles.
9. 6.37 miles
10. No, it is 7.77 miles away from his home.
Step-by-step explanation:
Answer:
y = 8
Step-by-step explanation:
11y + 4y + 60 = 180
11y + 4y = 120
15y = 120
y = 8
Answer:
x = 26, y = 19
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
, substitute values
=
= 2 ( multiply both sides by 13 )
x = 26
and
=
, substitute values
=
=
( cross- multiply )
2y = 38 ( divide both sides by 2 )
y = 19