Is c + 11 = 20; c =9 a solution if the equation

Step-by-step explanation:

c + 11 = 20subtract 11 from both sides

c = 20 - 11

c = 9

and u know that u can check ur answer by subbing it back into the equation

c + 11 = 20

9 + 11 = 20

20 = 20 (correct)

so yes, ur answer c = 9 is correct

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.