Answer:
The ways in which he can make selection = 
Step-by-step explanation:
Student is having a list of
books.
Assuming that the student can't read the same book twice.
The student has
choices to make for an outside reading requirement,for his 1st choice, he had
books to choose from; for his 2nd, he has
books left to choose from therefore the total permutations of his choices are 
So the total ways in which the student can make his selection = 
At D point in the bottom then up and to the right upper corner to Letter B
You can "spend all but 20%" so that means you can spend up to 80% of your money (since 20%+80% = 100%). Apply 80% to the value 225
80% of 225 = (80/100)*225 = 0.80*225 = 180
The most you can afford to spend is $180
2³ + 3² = 2*2*2+3*3= 8+9=17
a=2,
b=3,
P= 17,
2,3,17 are all prime numbers
Answer:
Week 4
Step-by-step explanation:
Ben has $250 in the beginning. He saves $150 per week.
y = 150x + 250
Tim has $1,650 in the beginning. He spends $200 per week.
y = 1650 - 200x
We are trying to find which x-value produces the same y-value for both equations. You can do this by setting both equations equal to each other.
150x + 250 = 1650 - 200x
(150x + 250) + 200x = (1650 - 200x) + 200x
350x + 250 = 1650
(350x + 250) - 250 = (1650) - 250
350x = 1400
(350x)/350 = (1400)/350
x = 4
By week 4, they will have the same amount of money.