Give ! macc.7.ns.1.2a what is the sign of the product (8) × (−23) × ( −21) × (−29)? positive, because the products (8) × (−23) and (−21) × (−29) are negative and the product of two negative numbers is positive positive, because the products (8) × (−23) and (−21) × (−29) are positive and the product of two positive numbers is positive negative, because the product (8) × (−23) is positive and the product (−21) × (−29) is negative and the product of a positive number and a negative number is negative negative, because the product (8) × (−23) is negative and the product (−21) × ( −29) is positive and the product of a negative number and a positive number is negative