The answer is as follows:

The first formula: three (hexagon+pentagon+quadrilateral) =45.

Hexagon+Pentagon+quadrilateral = 15

Hexagon =6, Pentagon =5, quadrilateral =4.

The second formula: 4 bananas +4 bananas+15=23.

4 bananas =4

1 banana = 1

The third formula: 4 bananas +3 points +3 points = 10.

3 o'clock =3

1 point = 1

The fourth formula: 2 points +3 bananas +3 bananas × (hexagon+Pentagon)

2+3+3×(6+5)

=5+3× 1 1

=5+33

=38