Find out n of these equations:
4n + 10 = 18
4n - 13 = 23
10n + 8 = 78

4n+10=18                         4n-13=23                           10n+8=78
4n+10-10=18-10              4n-13+13=23+13               10n+8-8=78-8
4n=8                                 4n=36                                 10n=70
n=2                                   n=9                                      n=7

1a - reduction

2a- enlargement

3a- reduction

4a- enlargement

Step-by-step explanation:

when the scale factor is greater than 100% it is making it larger, when less than 100% size it is making it smaller. for every answer do the original number (ex #1 would be 48 inches) and multiply it by the scale factor in decimal form, by moving the decimal over two places (ex #1 the 25% would become .25 or 1/4). therefore #1 would be an equation like 48 x 0.25= 12