Answer: 8
Step-by-step explanation:
Given
Lian has
and she has twice as many dimes as nickels
Suppose she has
nickels
So, the number of dimes is 
Nickel is equivalent to 5 cents and dime is equivalent to 10 cent

Therefore she has 8 dimes with her.
Answer:
4 cm
Step-by-step explanation:
to find the volume you multiply the lengths of all three sides together:
let 'm' = missing side
32 = 4·2·m
32 = 8m
m = 4
12a + 6 + 3a = 15a + 2
15a = 15a - 4
0 = - 4
Answer:
(7, 0).
Step-by-step explanation:
Where the diagonal lines overlap to form squares is where the solutions to the inequality lies.
The point (7, 0) lies in that region.