Step-by-step explanation:
We multiply it to find the product
positive times positive = positive
positive times negative = negative
negative times positive = negative
negative times negative = positive

Negative and negative is positive , so product is positive

Negative and positive is negative , so product is negative

positive and negative is negative , so product is negative

positive and positive is positive , so product is positive
Answer:
4. 21
5.120
Step-by-step explanation:
(the answer for #4
I added 5x+15 and 3x-3
and got
8x+12
and because we needed to find the value of x, l did this
8x+12=180
because interior consecutive angles equal 180
and I got 21
(answer for 5)
I then plugged 21 into 5x+15 because angle 1 is equal to it
5(21)+15
I got 120
Answer:
need a diagram to be able to answer
Step-by-step explanation: