First you need to combine like terms.
9x + 11y + 13
A coefficient is the number that comes before the variable (which is y).
The coefficient for y is 11.
Constants are the numbers that do not have variables attached to them.
The constant is 13.
Hope this helps!
You should use the calculator and just plug in those numbers
Answer:
30 seconds
Step-by-step explanation:
two would take 60
Answer:

Step-by-step explanation:
A ratio is a comparison of two quantities and can be written in several forms including fractions. It is most commonly written in fraction form or a:b.
To write a ratio, we count the number of each quantity we are comparing or use the variable for that quantity. We write radius:circumference. Recall, the circumference of a circle can be found using
or
.
We write r:
or r:
.
We can also write in fraction form:
or 