please help need help with algebra math.?

Question

5.Helen had to read 148pages of her science textbook in the 4 days remaining before an
exam.if she reads the same number of pages each day,how many pages will she need to read each day?
a.40
b.37
c.38.
d.36

9.which of the following is a composite number?

a.13
b.63
c.61
d.31

what is 39 squared?
a.78
b.1,482
c.39
d.1,521

Answer 1

5. 4x=148
x= 37

6. A composite number is a number that is not prime, or one that has factors other than 1 and itself. If you divide 63 by 3 you will get 21, so you know that it is not prime. You can also divide it by 7 and get 9. Because it is not prime, it is composite.

7. 39^2 = 39 x 39 = 1521

Answer 2

5. 37 (148 divided by 4 is 37)

9. 63 (composite number is opposite of prime numbers, numbers that can only be divided by one and themselves. so a composite number can be divided by something other than one and itself. 63 can be divided by 9 and 7, so it is a composite.)

39 squared is 1521, it is simply a matter of doing 39 times 39.

Hope I helped!

Answer 3

1. 148 divided by 4= 37 pages per day
2. 63 because it has other dividers besides 1 and itself
3. 39 x 39 = 1521