Answer:

Step-by-step explanation:
Make bototm number same
3/10 times 13/13=39/130
4/13 times 10/10=40/130
A.
39/130 and 40/130
they are 1/130 apart
B.
a ratioal number between
39/130=390/1300
40/130=400/1300
between 390/1300 and 400/1300
any number from 391/1300 to 399/1300 example 395/1300
1. -1/20
work: Write all numerators above the least common denominator: -8+2+5/20
*Calculate the sum or difference: -1/20
The answer should be -4,
7x2=14
2x-9=-18
14+ -18= -4
Answer:
Step-by-step explanation:
1.4% of b = 
8% of x = 