Answer:
The required function that models the number of branches t years since Bela began studying her tree is
number of branches = 
Step-by-step explanation:
Let t be the time in years
Initially Bela's tree had 60 branches.
therefore the function that can be used to model the number of branches after t years will be given by
number of branches( after t years) 
Factor the expression:
(x + 3) (x + 5)
Answer:
35% of the sixth grade is in the chess club
Step-by-step explanation:
if there are 100 students consider that as 100%
20 is a fifth of 100
20 x 5 =100
since 7/20 is a fraction you multiple the numerator (7) with the same number you multiplied to the denominator (20) which is 5.
7 x 5 = 35
35/100 = 35%
Answer:
g(x)=2x-3÷5
g=-11 as give by question
x=9 as give by question
-11×9=2×9-3÷5
-99=18-3÷5
-99=15÷5
-99=3
=3+99
=102#
Answer:
170, 230
Step-by-step explanation:
Let one boy gets x sweets .
Other boy gets x + 60 sweets .
Total = 400
x + x + 60 = 400
2x = 340
x = 170
So the other gets = 170 + 60 = 230
