A DVD originally costs $16. The discounted price is $12. What is the percent change?

25% increase
25% decrease
18.75% increase
18.75% decrease

Which one of those answers?
And explain?

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?