Answer:
A
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
The lines on the outside simply means "absolute value". This just takes any negative number and makes it positive. In this case, 15-4 is already positive so the answer is just positive 11.
Answer:

Explanation:
05/10
Simplifying
1/2
or 2^-1
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Answer:
91
Step-by-step explanation:
7(10+3)
7(10)+7(3)
70+21
91
Answer:
solo suma todos los valores x+4(3)+(x+x)
en el segundo x+5(2)+x+3(2)
en el tercero x-3+(2x+5)+(2x+5)
y en el cuarto x(3)+(x+4)