(-3.85)*(-13)+(-13)*(-6.15)+0.79* 15/7 + 15/8 *0.79
=(-13)*(-3.85-6.15) +0.79*(15/7+15/8)
=-13*(-10)+0.79*1
=130+0.79
=130.79
(-3.85)*(-13)+(-13)*(-6.15)+0.79* 15/7 + 15/8 *0.79
=(-13)*(-3.85-6.15) +0.79*(15/7+15/8)
=-13*(-10)+0.79*1
=130+0.79
=130.79