Let the 'something' be x and so:-
45x = 3*3 => 45x = 9 => x = 9/45 => x = 1/5
3x = 45 x = 15
135
Yes, because 15 times 3 equals 45.
3
They are: 3 times 15 = 45, 9 times 5 = 45 and 1 times 45 = 45
4
15
18+(9*3) = 45
4x16=64 that is the final answer
4.5
1 x 45, 3 x 15, 5 x 9 = 45
5A2 + 3 = 48 Therefore, 5A2 = 45 Therefore, A2 = 45/5 A = sqrt(9) A = 3