Find a. Round to the nearest tenth.
12 cm
22 cm
75°
31.8°
a
a = [?] cm

Bis the answer! hope this

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

It’s 24.6 after you round to the nearest tenths the answer should be 25.0