PLZ HELP ME Shelly incorrectly solved the equation ½ (c+6)=7.her work is shown. Shelly has made Three errors in her work. In the space next to the error, describe what Shelly has done incorrectly.

1. incorrect Shelly forgot to distribute the 1/2 throughout the parentheses

2. incorrect Shelly only multiplied  the 1/2 to c and brought the 6 over to the 7

3. incorrect Shelly added the 6 and the 7 and only multiplied the 1/2 to the c

4. incorrect Shelly add the 6 and 7 and divided by 2 when she should have multiplied and she didn't distribute the 1/2 throughout the parentheses

5. incorrect she added the 7 to the 6 and subtracted the 6 1/2

Please let me know if I am correct

I hope this helps

addition

step-by-step explanation:

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²