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Answer: 2 calls
Step-by-step explanation:
4 mins/2 minutes per call
Answer:
z=3
4(z+6)-11=25
add 11 to both sides
4(z+6)-11+11=25+11
simplify
4(z+6)=36
divide each side by 4
(4(z+6))/4=36/4
Simplify
z+6=9
subtract 6 from each side
z+6-6=9-6
the answer is the bottom one on the first row
