Atree is 9 centimeters taller each year than it was the year before. if you write down the height each year, what kind of sequence will you have?
arithmetic, geometric or both or none

Arithmetic sequence.

Step-by-step explanation:

Suppose  we start from a tree 9 cm tall.

Each year the height will increase by 9cm:

So year be year the heights will be:

9, 18, 27, 36

This is an Arithmetic Sequence because it has a common difference of 9.

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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