1. 641
2. 65.4
3. 21+7=28 total marbles. The greatest number of groups would be 7, with 1 blue and 3 white.
4. 80% of 685= .80 x 685= 548 students.
In rounding, a number must be 5 or more to round up, and 4 or less to round down.
To round up to 4.26 you would need a number between 4.255 and 4.264
4.258 and 4.261 are two examples
Answer:

Step-by-step explanation:
General slope intercept form equation of straight line is given as

where m is slope and b is y-intercept
here m=24 and b=-5
Therefore

Answer: the answer is 48 feet
Step-by-step explanation: 24+ 12+ 12=48