Question

48- (3.75+4)x3 -(1.5x1.5)

Answer 1

$48 - (3.75 + 4) \times 3 - (1.5 \times 1.5) = \\ 48 - 7.75 \times 3 - 2.25 = \\ 48 - 23.25 - 2.25 = \\ 22.5$