Ill give brainliest to first answer

$120 for 20 lessons

Step-by-step explanation:

Divide each to find the cost for each lesson:

First choice: 90/10 = 9 or $9 per lesson

Second choice: 160/20 = 8 or $8 per lesson

Third choice: 80/10 = 8 or $8 per lesson

Fourth choice: 120/20 = 6 or $6 per lesson.

$120 for 20 lessons is your answer for it is cheaper by $2 (in comparison to choice 2 & 3), and by $3 (in comparison to first choice).

segment bisector

step-by-step explanation:

line segment bisector. definition: a line, ray or segment which cuts another line segment into two equal parts. try this drag one of the orange dots at a or b and note the the line ab always divides the line pq into two equal parts.

mark brainliest!