Answer:
A. Cubic binomial.
Step-by-step explanation:
1.5x + 7 = 20.5
First subtract 7 from both sides
1.5x = 13.5
Then divide both sides by 1.5
x = 9
Let me know in comments if you have questions
Answer:
Step-by-step explanation:
you change it to an improper fraction for example 20 2/6x6 3/6
you gotta multiply the 6 in the 20 2/6 by 20 then add the 2 so it would be 122/6 do the same for the other and then you have 39/6 then multiply 122/6x39/6
Yes -4 is a interference number