Answer:

Step-by-step explanation:
- Calculate the ratio of the progression by dividing a term of it by the immediately preceding one.

- We simplify the fractions:

Since the ratio is the same, that is the common ratio.
<h3><em><u>MissSpanish</u></em></h3>
Answer:
Brett is 62 years old, Carl is 70 years old and Mark is 80 years old.
Step-by-step explanation:
let the age of Brett be <em>x</em> years.
thus the age of Mark is <em>(x+18)</em> years .
{as it is given that Brett is 18 years younger than Mark}
∴ Age of Carl is <em>(x+8) </em>years .
Now the sum of ages,
3x+26=212 (given)
3x=186
∴x=62
thus , the age of Brett is 62 years , the age of mark is <em>(x+18)</em>= 80 years and the age of Carl is <em>(x+8)</em>= 70 years
Answer:
total capacity of tank = 250L
Portion of tank emptied = 3/4*250= 187.5L
water in tank = 250 - 187.5 =62.5L
Answer:
C.
Step-by-step explanation:
c is the only one that even makes sense
Answer:
Robert
Step-by-step explanation:
If Robert runs 3 miles in 45 minutes, by the end of 90minutes, Robert would have covered 6miles, while Jacob covered 5miles in 90 minutes, therefore, Robert ran faster than Jacob.