7.2*58+0.72*42
=7.2*58+0.72*(4.2*10)
=7.2*58+(0.72*10)*4.2
=7.2*5.8+7.2*4.2
=7.2*(5.8+4.2)
=7.2*10
=72
BSFAHVFVADBFVSDHFHSDHFBHSDBFHSDFHBSJNHFBHBDNMC NBZX CNZBXCNZ JSDFBJKABDKFJBSDJKF
=7.2*58+0.72*(4.2*10)
=7.2*58+(0.72*10)*4.2
=7.2*5.8+7.2*4.2
=7.2*(5.8+4.2)
=7.2*10
=72
7.2*58+0.72*42
=7.2*58+7.2*42*1/10
=7.2(58+42)*1/10
=7.2*100*1/10
=72