I'm pretty sure its 5, because theres 15 on the one side and 10 on the other and the <em><u>?</u></em><em><u> </u></em> side would be 5 then.
Answer:
good.......
Step-by-step explanation:
nothing much
|2.5| because 2 and 1/2 are also 2.5 written in decimal, and the absolute value is always positive
Use the website: mathpapa.com/algebra-calculator.html
the last one because 7*3=21 14*3=42 and 21*3=63
