Iwill give brainliest

7.which pair of numbers is relatively prime?
14/35
14/38 *
14/81
14/91

8. what value of b solves the equation?
b-^3=1/27

9
3
27 *
81

9.
what is 10^-5 written in standard form?
10,000
1000
0.0001
0.1

10.
what is 100,000,000,000 written as a power of ten?
9
8 *
10
11

check answers

7. The numbers 14/81 are relatively prime

8. b=3

9. 0.00001

19. 11

Step-by-step explanation:

7. Relatively prime numbers have no common factors. We only have to factor each number and compare

14=2*7

35=5*7

38=2*19

81=9*9

91=7*13

The first two numbers have 7 in common

The second have 2 in common

The third set have no common factors

The fourth set have 7 in common

The numbers 14/81 are relatively prime

8.

9.

10. 100,000,000,000=10*10*...10 as many times as zeroes there are, so

fourth month

step-by-step explanation:

it is the one with the most keychains.

the answer is c

hope this !