Answer:
Step-by-step explanation:

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8
9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

Answer:
2 millimeters.
Step-by-step explanation:
1 millimeter : 6 meters
x millimeters : 12 meters
x = (12÷6) × 1
x = 2×1
x = 2 millimeters
Answer:
distance = 5
Step-by-step explanation:
Use Pythagorean Theorem or Distance Formula (which comes from Pythagorean Thm anyway) see image.
The zero for -2x+10x-16 is positive 2
Answer:
B.25.12
Step-by-step explanation:
Solution
C=2πr=2·π·4≈25.13274cm
Hope this helps!