Question

question is in image

Answer 1

Step-by-step explanation:

27. 200000

hope i answered your question...

Answer 2

Answer:

27)200000

28)3/4

Step-by-step explanation:

27)

$2.387 \times {10}^{7} - 2.367 \times {10}^{7}$

$= {10}^{7} (2.387 - 2.367)$

$= 0.02 \times {10}^{7}$

$= \frac{2}{100} \times 10000000$

$= 200000$

28)

$( { \frac{5}{3} })^{ - 5} \times ( { \frac{5}{3} })^{11}$

$= ( \frac{5}{3})^{ - 5 + 11}$

$( { \frac{5}{3} })^{6} = ( { \frac{5}{3} })^{8x}$

6=8x

x=6/8

=3/4