Respuesta :

Change each mixed number to an improper fraction

-3 1/3 = -(3*3+1)/3 = -10/3

-8 7/10 = -(10*8+7)/10 = -87/10

then multiply

-10/3 * -87 /10= 870/30   ( a negative times a negative is a positive)

870/30 = 87/3   =29

Answer:

D.29

Step-by-step explanation:

that's right on plato