From a survey of 100 college students, a marketing research company found that 70 students owned iPhones, 45 owned cars, and 40 owned both cars and iPhones.

(a) How many students owned either a car or an iPhone (but not both)?
1 students

(b) How many students do not own either a car or an iPhone?
2 students

I got a. 115 don't know how to get to b

Determine the down payment and the amount to be financed for each home described below.

(a) $360,360; 10% down
The down payment is $ 1
The amount to be financed is $ 2

(b) $960,000; 20% down
The down payment is $ 3
The amount to be financed is $ 4

my answer are a. 36036 financed 324.324
b. 192000 financed is 768,000 is that right

To find how many students do not own either a car or an iPhone, we need to subtract the total number of students who own either a car or an iPhone (including those who own both) from the total number of students in the survey.

First, let's find the total number of students who own either a car or an iPhone. We can do this by adding the number of students who own cars and the number of students who own iPhones and then subtracting the number of students who own both.

Total students who own either a car or an iPhone = Number of students who own cars + Number of students who own iPhones - Number of students who own both cars and iPhones

Total students who own either a car or an iPhone = 45 + 70 - 40 = 75

Now, to find the number of students who do not own either a car or an iPhone, we subtract this total from the total number of students in the survey.

Number of students who do not own either a car or an iPhone = Total number of students in the survey - Total students who own either a car or an iPhone

Since the survey included 100 college students, we have:

Number of students who do not own either a car or an iPhone = 100 - 75 = 25

Therefore, there are 25 students in the survey who do not own either a car or an iPhone.