Answer:
120 ways
Step-by-step explanation:
On the first day, John was 5 choices 5
On the second day he has 4 choices 4
On the third day he has 3 choices
On the fourth day he has 2 choices
On the fifth day he has 1 choice
5*4*3*2*1 = 120 different ways
the greater common factor is : a.2
280 square inch
2(4*8)+2(8*9)+2(9*4)
= 64+144+72
=280
The two numbers are 17 and 7.
x+y=24
x-y=10
------------
2x=34
x=34/2
x=17
17-y=10
y=17-10
y=7
