Answer:
It is the last one.
Step-by-step explanation:
With a problem like this you must rank highest to lowest and add anything that has the same look. Take 2squared and 5 squared for example, They both are squared so you can add them. Hope this Helped.
Answer:
81
Step-by-step explanation:
let the terms be a,ar,ar²
r=2/3
a+a(2/3)+a(2/3)²=171
multiply by 9
9a+6a+4a=171×9
19 a=171×9
a=(171×9)/(19)
a=9×9=81
Answer:
21
Step-by-step explanation:
Use Pemdas.
Parentesis first so 5+4 = 9 and 8-6=2 so, 9X2=18+3=21
Answer:
its the mean for the data, its showing you the average studying time
In the image move the point 3 left and 2 up then you should have your answer
