Yes it is keep up the good work
-110x+40
You need to use the distributive property for this problem
You multiply 22x times -5 (which is -110x) and -8 times -5 (which is 40) to get -110x+40
Divide any term by the term before it, and you'll get the common ratio of the geometric series.
-81/-27=3
The common ratio is 3.
2/5 = ?/10 = 0.4
2*(2/5) = (2*2)/(2*5) = 4/10
? = 4
