Step-by-step explanation:
I think the answer for the 3) is S=(a×ha)÷2= (7×4.2)÷2= 29,4 ÷2=14.7
And for the 5) one im really not sure.
Answer:
<em><u>Decimal</u></em><em><u>:</u></em>
100 + 50 + 25 + 12.5 + 6.25 + 3.125 + 1.5625
<u><em>Fraction</em></u><u><em>:</em></u>
