Answer:
a. 4(d+3e)
b. 6(3x+5y)
c. 7(3a+4y)
d. 8(3f+7g)
Step-by-step explanation:
In each case we find the greatest common factor of the numbers. That is the greatest number that goes into both the numbers. Then we factor it out in front and inside parentheses we divide each original term by the greatest common factor:
a. 4d+12e, GCF: 4

b. 18x+30y, GCF: 6

c. 21a+28y, GCF: 7

d. 24f+56g, GCF: 8

Ask a parent to help you with it because I'm not so sure maybe 12/60?
Distance = velocity * time
d=135*15=2025 mi.
Answer:
Scientific notation is a way of writing long numbers, often with a lot of zeros, in a shorter and easier to read format.
Step-by-step explanation:
As an example I will use 360
first move the decimal so the number is larger than one but less than ten
So the number will be 3.60
to make it equal to 360 it would be 3.6 x 10^2 multiplying 3.6 by 10 to the power of 2 will make it 360. for a more in depth and probably better explination I would check khan academy.