Answer:

Step-by-step explanation:
Given


Required
Determine the changes in the account
First, we need to determine the total amount spent;



<em>Hence, the changes in her account is a debit of $9 i.e. -$9</em>
Answer:
Step-by-step explanation:
D 30 would be the answer sorry if its wrong
3 to the power of 1 simplified, is just 3.
Answer:
6
Step-by-step explanation:
Step-by-step explanation:
a. f(-4)= 2
b. f(0) = 0
c. f(3) = -1.8
d. f(-5) = 0
e. f(x) = -2 => x = 2
f. f(x) = 0 => x = 0 or -5