F=c+32
this is a plug in formula, therefore to find fahrenheit you take the celsius and add 32 to get your fahrenheit answer.
Answer:
25 percent
Step-by-step explanation:
Percent decrease = (original - new)/original * 100 percent
= (40-30)/40 * 100 percent
= 10/40 * 100 percent
= .25 * 100 percent
=25 %
