Step-by-step explanation:
1.
(chain rule)
2 

Answer:
x=30
Step-by-step explanation:
2x+2x+x+x=180
6x=180
x=30
Answer:
2/3
Step-by-step explanation:
hope this helps!
Answer:
Step-by-step explanation:Here's li
nk to the ansly/3fcEdSxwer:
bit.
Answer:
D) $7
Step-by-step explanation:
The cost for a dozen donuts is 5 dollars
The money made from a dozen donuts is
12*1 = 12 dollars
The profit is the money made minus the money spent
12 -5 =7