3.5 since its asking how many he has, he has 3.5 its not askint how many bags he needs or how much a bag holds
A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 20 is about 4.472. Thus, the square root of 20 is not an integer, and therefore 20 is not a square number.
Interval notation
(-infinity sign, 1)
Set-builder notation
{x|x less than equal to 1}
Complementary angles = 90
x+y =90
y=x+24
substitute this in to the equation
x+x+24=90
2x+24=90
subtract 24 from each side
2x = 66
divide by 2
x=33
y = 33+24
y=57
Answer: 33, 57
Answer; (i) 40 p, Rs 2 = 40 p to 200 p (1 Rupee = 100 paise)
Explanation;
