Zero because the cancel out
Answer:
79
Step-by-step explanation:
Add.
17 + 2 = 19
Multiply.
19 x 4 = 79
Lena had $24 at the beginning
the movie ticket was $6
it's just basic algebra
The given expression can be written as
= (q+8)(q+4).
Step-by-step explanation:
Given,

To make it a complete square.
Formula
(a+b)² = 

Now,

= 
= (q+6)²-36+32
= (q+6)²-4
= (q+6)²-2²
= (q+6+2)(q+6-2)
= (q+8)(q+4)
Answer: You have 34 left.
Step-by-step explanation:
69 - 15 = 54
54 - 20 = 34