Pls help ASAP and make sure u explain how did u get the answer and write the formula and ty

1. -20, -23, and -26.

2. 78, 83, and 88.

3. 1

Step-by-step explanation:

The next three terms are -20, -23, and -26 because it is decreasing by 3  each time.

This time it is just increasing by 5.

This time the answer is 1 because if n does not have a number then it turns into 1. 1 minus 1 is 0 then 0 times 9 is 0. Then a1 is also equal to 1 so one plus 0 equals 1.

I hope this helped and your welcome.

109 trust me

step-by-step explanation:

false

step-by-step explanation:

rulers and compasses arent required in order to bisect an angle because when bisecting angles, you're making a "half circle" and considering in order to bisect an angle it wouldn't be straight, you wouldn't need either of the two