PLX HELP I believe it's this one..

1. They should leave $3.51 For a tip.

$23.40 x 0.15 = $3.51

The total amount of money they would give is $26.91; 23.40 + 3.51 = 26.91.

2.The Briarwood Middle School chess club has 55 members. 22 of the members are in seventh grade.

To convert a fraction into a percent divide the numerator by the denominator and then multiply that result with 100. We can show this formula by (Numerator/Denominator)*100.

(22/55)*100

= 40.00%

= 40%

3. 20

4. 144

5. 61.1%

6. 140

7. 62.7

8. 11.8%

Hope I helped ~Laurel

33

step-by-step explanation: g=6

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)