Question

PLEASE HELP I GIVE THANKS

Answer 1

a) Scale factor is = Second Value / First Value
= 8.4 / 4 = 2.1

b) 0.25 = Second Value / First value

0.25 = Second Value / 9

Second value = 0.25 * 9 = 2.25.

Answer 2

Like earlier take the bigger shape and divide the smaller one.
8.4 divide by 4 and you get 2.1.