23.
Area formula of a triangle:
given: base = 9 cm height = 4 cm
A = 1/2 bh
=1/2(9)(4)
=18 cm²
24.
given: probability of rain - 0.03
of no rain - ?
1 - 0.03 = 0.97
25.
Volume formula of a cuboid:
V = length x base x height
= 6 x 4 x 2.5
= 60 cm³