Answer:
28.8
Step-by-step explanation:
the original is 45=100%
it reduced by 36% meaning;100%-36%=64%
if45=100%
? =64%
45*64=2880/100=28.8
Answer:
Options (3) and (6)
Step-by-step explanation:
"A straight line is a set of all points between two points and extending beyond these points."
Therefore, from the given diagram,
Arrows connecting set of two points B and C and D and E will be straight lines.
Geometrically we denote them with an arrow over the line.
and 
Therefore, Options (3) and (6) will be the answer.
The exact answer is

but if you round it up it will equal
Answer:
1. Not a function.
2. This is a function.
3. This is a function.
Step-by-step explanation:
1. 13 maps on to 4 and -4 so not a function.
2 and 3 - these both pass the vertical line test so they are functions.