Answer:
A. Adrian is incorrect because the product of a positive number and a negative number should be negative.
B. Change 4 to -4 so as to have two negative numbers being multiplied together, this will give us a positive result as seen below;
Step-by-step explanation:
A) When a positive number is multiplied by a negative and vice versa, the product will be negative.
We're told that Adrian multiplied a positive number by a negative number and had a positive result 4(-9) = 36. This is incorrect because the product of a positive number and a negative number should be negative.
B) The product of two negative numbers will be positive. So we can change 4 to -4 so as to have two negative numbers being multiplied together, this will give us a positive result as seen below;