Answer:
he is11 years old cause when he was 1 walked was 5
Let's assume that number as x
The product of 7 and a number =7x
and then increased by 1
so, it will become
=7x+1
now, it is between 15 and 43
so, we can write as

now, we can solve for x
Since, we have to isolate x
step-1:
Subtract all the sides by 1


step-2:
Divide all the sides by 7


so, solution is
.............Answer
Answer: I THINK A function f (x) is called increasing in an interval [a,b] when f' (x) > 0 in the interval (a,b). That is, in that interval, with increasing the value of x the value of f (x) increases. Let f (x) be the function which is shown in the given diagram.
Step-by-step explanation:
Answer:
193
Step-by-step explanation: