The statements that are true are:
First option: All functions have dependent a variable
Second option: All functions have an independent variable.
Fifth option: A horizontal line is an example of a functional relationship
5.618 rounded to the nearest hundredth is 5.62.
1) p + 8
Substitute 2 in for the variable.
2 + 8 =

2) 3p
Substitute 2 in for the variable.
3(2) =

3) 16 - p
Substitute 2 in for the variable.
16 - 2 =

4) -12 ÷ p
Substitute 2 in for the variable.
-12 ÷ 2 =
W+d=869
w=d-81
plug in
(d-81)+d=869
2d-81=869
+81 both sides
2d=950
÷2 both sides
d=475
dryer cost $475
let's check w=475-81
w=394
475+394=869
869=869
the solution is true :)
I believe the answer is 23.52 because if u add 19.60 to 20% thats what u get