Answer:
He is B) 45 years old
Step-by-step explanation:
If he was 30 when she was born, he was 40 when she was 10, and he was 45 when she was 15.
15 x 3 = 45
Edit: It can actually be any of them....
will be the function to calculate population every half year.
Further explanation:
The given formula is:

In the given formula, x represents the amount of time in years. So, in order to convert the given function for yearly calculation of population, to find the population every half year the time will be converted into half. This means that instead of x, x/2 will be used.
So the new function will be:

Keywords: Population growth, Population growth function
Learn more about population growth at:
#LearnwithBrainly
Answer:
840 courses
Step-by-step explanation:
One third of the people ate a two course meal: 105 people ate two course meals.
Two thirds of the people ate a three course meal: 210 people ate three course meals.
105X2 + 210X3 = 210 + 630 = 840 courses
Answer:
b=35 because 4+29=35 and that my statement for this answer so glad with the rest
Answer:
slope = 3
Step-by-step explanation:
if each square is equal to 1
The slope has to be 3.
you can see it, because between those 2 point you can count 3 spaces in y-vertex, and 1 space in x-vertex
what that means is that we will move 3 steps up (or down) for each 1 space in x-vertex.
you can see it just right there on the graph