Question

ME AJUDEM !!!!!!!! pffffvvvvvvvv

Answer 1

$17)\\\\y=3.a=3*2,2=6,6\\V=6,6*10^{-5}* 15^{3}*(100-20)\\ V=17,82 cm^{3} \\\\18)\\B=2.a=2*1,2=2,4\\A=2,4*10^{-5}*120*80\\ A=0,2304cm^{2}$