please if anyone could help me with this

Question

question:
1. A class paid $20 for a cake and $4 per child for one slice of cheese pizza.
they paid $140.
how many children are in the class?

2. Rajie want to divide 24 peanuts, 64 raisins, and 56 apricots evenly into packets (with 0 food/things left over. no i did not copy right i put this in my own words. no i did not use a name i know of, and YES this is a real question).
what is the greatest number of packets he can make?

3. a number has.... remainder 2 when it's divided by 3.
remainder 4 when it's divided into 5.
what is the number?

4. Make as man three digit numbers as you can using the digits 5, 1, and 0 (use each of the digits only once).
which of the numbers are divisible by...
a) 2 c) 10 or....
b) 5 d) 3 ??

PLEASE IF ANYONE COULD HELP?!?!?!? I could really use the help!! A.S.A.P please!!

Answer 1

After subtracting the $20 from the $140 we would know how much we paid for the pizza.
How many slices do we have if each slice costs $4 ?

2. This is like finding the LCM of 24, 64, and 56
At this level of arithmetic, you must have learned how to find that.
e.g.
24 = 2*2*2*3
64 = 2*2*2*2*2*2
56 = 2*2*2*7

3.
numbers which have a remainder of 2 when divided by 3:
2 5 8 11 14 17 20 23 26 29 32 35 ...
numbers which have a remainder of 4 when divided by 5:
4 9 14 19 24 29 34 39 ...
What do you think?

4.
can't use the 0 at the front
number of possible numbers
= 2*2*1
= 4
Gee, there are only 4 of them, why not just list them, and then you can answer the last part.

Answer 2

#1: 20 + 4x = 140

#2: GCD(24,64,56) = 8

#3: I suspect you meant that there is a remainder of 4 when it is divided by 5. If sol, just list the numbers with these two properties:

2,5,8,11,14,17,...
4,9,14,19,...

14 = 4*3+2 = 2*5+4

#4. There are only 4 such numbers: 105,150,501,510

Answer 3

for #2, go with Steve's answer.
I should have called it GCD instead of LCM