Agardener a is 7 feet tall and grows at a rate of 11 inches per year: type a is 7 feet tall and grows at a rate of 11 inches per year. type b is 8 feet tall and grows at a rate of 9 inches per year

6 years (assuming the question is how many years it'll take for them to be the same height)

Step-by-step explanation:

You have to first convert the height of the trees into inches. 7 feet will convert into 84 inches and 8 feet will convert into 96 inches. since type a is 84 inches and grows 11 inches a year it'll create the expression 84+11x. Type b will create the expression 96+9x. Since you're looking for how long it'll take you set the expressions up to one another and solve for it.

84+11x=96+9x

-84         -84

11x=12+9x

-9x    -9x

2x=12

x=6

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

happy to

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$15 each

step-by-step explanation:

$45/3 children= $15 each