Asap 20 pts + brainliest to right/best answer

3 + 19i

Step-by-step explanation:

(-1-3i) (-6-i)

FOIL

first -1 *-6 = 6

outer -1 * -i = i

inner -3i *-6 = 18 i

last -3i * -i = 3i^ = 3(-1) = -3

Add them together

6+i+18i -3

3 +19i

sorry, i can't understand your question. will later if you describe more clearly!

: )

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.